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  • 4501.
    Svensson Harari, Natalia
    et al.
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Osterman, Christer
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Bruch, Jessica
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Jackson, Mats
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Flexibility in Lean Mixed Model Assembly Lines2014In: ADVANCES IN PRODUCTION MANAGEMENT SYSTEMS: INNOVATIVE AND KNOWLEDGE-BASED PRODUCTION MANAGEMENT IN A GLOBAL-LOCAL WORLD, APMS 2014, PT III / [ed] Grabot, B Vallespir, B Gomes, S Bouras, A Kiritsis, D, SPRINGER-VERLAG BERLIN , 2014, p. 224-231Conference paper (Refereed)
    Abstract [en]

    The purpose of the research presented in this paper has been to characterize flexibility in lean mixed model assembly lines through exploring mechanisms used to achieve flexibility. The study combines a literature review and a multiple case study in two manufacturing companies. Scenarios of volume, mix and operation flexibility, as well as flexibility to introduce or remove products were studied. The results showed that to achieve flexibility related to these scenarios other kinds of flexibilities were used. Common mechanisms to achieve flexibility have been found in the two cases. A characterization of mixed model assembly lines regarding flexibility will be discussed.

  • 4502.
    Svensson, Ida
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Folkesson, Johanna
    Mälardalen University, School of Innovation, Design and Engineering.
    Från ett problem till ett annat: Hur applicerbara är problemlösningsmodeller på verkligheten?2009Independent thesis Basic level (degree of Bachelor), 15 credits / 22,5 HE creditsStudent thesis
  • 4503.
    Svensson, Kristian
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Engström, Anton
    Mälardalen University, School of Innovation, Design and Engineering.
    En matematikapplikation implementerad för Windows 82014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 4504.
    Svensson, Linda
    Mälardalen University, School of Innovation, Design and Engineering.
    Något vi aldrig sett, en annorlunda toalett: En studie om hur ett rum kan få ett nytt syfte genom designdriven innovation.2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Vi människor spenderar hela våra liv med att leta efter och bestämma meningar och syften för saker. Vi gör det för att skapa en helhet av vårt liv och vår omvärld. Genom detta är det också möjligt att hitta och ta fram nya meningar och på så sätt skapa innovationer. Detta är ett synsätt inom design som kallas designdriven innovation och återfinns främst inom produktutveckling. Men varför skulle vi inte ge meningar till miljöer på samma sätt som till produkter?

    Denna studie undersöker därför på vilket sätt designdriven innovation kan appliceras inom området rumslig gestaltning. Detta för att kunna ge rum nya användningsområden genom applicerade syftesändringar. Gestaltningen måste dessutom kommunicera det nya syftet till användarna. Hur detta kan göras undersöks också i studien. Arbetet har utgått från ett specifikt rum, en toalett på företaget Rise Sics i Västerås, för att kunna svara på forskningsfrågan.

    I arbetet har metoderna platsanalys, kvalitativ intervju, designdiskussion och användartester utförts. Teorier om designdriven innovation, användarcentrerad design, färg, ljus, ljud och material har studerats. Det empiriska materialet och teorierna har sedan legat till grund för ett gestaltningsförslag till toaletten, där ett nytt tillagt syfte gestaltas och kommuniceras via den rumsliga utformningen.

  • 4505.
    Svensson, Martin
    Mälardalen University, School of Innovation, Design and Engineering.
    Design och konstruktion av modellhus2018Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Detta examensarbetet är utfört på C-nivå vid Mälardalens Högskola. Uppdraget gavs av Husmuttern AB. Deras företagskoncept är att utveckla och producera mikrofabriker för tillverkning av modulhus. Examensarbete beskriver framtagningsprocessen från idé till fysisk skalmodell av Husmutterns AB:s modulhus. Modellens syfte är att fungera som demonstrationshus samt leksakhus.

    Projektets huvudsakliga frågeställning handlar om hur modellen ska designas och konstrueras för att få en hållbar och stabil modell som även liknar Husmutterns fullskaliga modulhus.

    Projektet startades med upprättande av direktiv och krav samt analyseringar kring modellhuset. Därefter genererades koncept kring hopsättningen av modellens ingående byggsektioner. Arbetet slutfördes med CAD-modeller på modellhusets samtliga ingående delar. Tillslut tillverkades en verklig prototyp av modellhuset i skala 1:18.

  • 4506.
    Svensson, Mikael
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Santibañez Jara, Pablo
    Mälardalen University, School of Innovation, Design and Engineering.
    Independent Local Locator Substrate Indirection Transport2009Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Interoperation between IPv4 and IPv6 on a global scale is largely an unsolved problem, and in principle a problem without a proper solution. The 32-bit IPv4 address can simply not express all possible IPv6 hosts. Today, IP plays a double role. It is both a topological locator as well as a host identity. By decoupling the two roles a communication could also span over incompatible locator domains (e.g. IPv4 and IPv6). The Host Identity Protocol (HIP) [W16] uses this decoupling by providing two discrete data structures, one for the host identity and one for the interfaces locator.  By extending HIP to allow differently formatted locators, and with the help of an Identity Router, one could cross past differing locator domains without the individual hosts needing to be configured for any particular domain other than their own.

    The goal of this thesis is to investigate possible methods and architectures to allow this kind of locator domain interoperability and to implement a proof of concept gateway. The first part of the thesis consists of the exploration of the problem domain. Collecting the requirements of HIP enabled hosts, and to define a method for the interoperability of two HIP-hosts residing in two differing locator domains (IPv4/IPv6 will be assumed for scope limiting purposes). The output of this part will be a set of requirements, a suggested solution and a rationale for the chosen solution. The second part consists of the design and implementation of the required components for the interoperation. At the time of writing, the foreseen components will be: a parameter to HIP and a gateway, however, this is subject to change depending on the output of part one. The expected output of part two is a design specification, an implementation plan for the components and finally the implementation of the defined components.

  • 4507.
    Svensson, My
    Mälardalen University, School of Innovation, Design and Engineering.
    Lätt lärobokstext?: En studie i möjligheterna i att förenkla faktabaserade läroböcker med textbearbetning.2013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Utgångspunkten för det här arbetet är studier som visar att elever i svenska skolor har blivit allt sämre på att ta till sig faktatexter (PIRLS 2011 i Skolverket 2012). Att återge enkla former av faktatexter är ett kunskapskrav redan i årskurs 3 (Skolverket 2011), men en del barn vågar inte ens ge sig på texter av rädsla för att misslyckas. Detta kan ha sin grund i möten med texter som inte varit anpassade efter elevernas förmåga (Lundberg 2006 s. 16–18 och Taube 2004 [1987] s. 123).

    Således handlar mitt arbete om att undersöka vilken typ av textbearbetning som kan användas för att förenkla faktatexter för barn och i synnerhet då en utvald del av Natur & Kulturs PULS SO-boken. Målgruppen är barn i årskurs 2–3 och framförallt barn med svenska som andraspråk, en grupp som visat sig vara överrepresenterade i gruppen ”svaga läsare” (PIRLS m.fl. i Lundberg och Reichenberg 2008 s. 25). En mottagaranpassad text är mycket viktig för att eleverna ska få läslust, ökat självförtroende och förstå texter (Taube s. 123). Detta bidrar i sin tur till att tidigare nämnda kunskapskrav uppfylls och eleverna får ökade förutsättningar att bli en del av vårt informationstäta samhälle. Dessutom är välarbetade lärobokstexter synnerligen viktiga eftersom de utgör förebilder för elevernas eget skrivande (Strömquist 1999 [1995] s. 7).

    Jag har använt mig av både kvalitativa och kvantitativa metoder eftersom de kompletterar varandra. Litteraturstudier har varit en stor och viktig del av mitt arbete och gav mig en teori att utgå från. Teorin om att ”röst och kausalitet ökar läsförståelsen” har sin grund i amerikansk forskning som sedan har applicerats i svenska förhållanden i både en stor kvantitativ studie med högstadieelever (av professor Monica Reichenberg) och en mindre med mellanstadieelever (av språkkonsult Martin Ransgart). För att få en djupare förståelse för min målgrupps syn på PULS SO-boken och min bearbetade text har jag gjort intervjuer med både dem och en lärare som jobbar med boken. För att testa att teorin fungerar i praktiken gjorde jag också utprovningar.

    Slutsatsen är att framförallt fyra typer av textbearbetning kan användas för att förenkla faktatexter och samtidigt öka läsförståelsen: röst, konkretion, tydliggjorda orsakssamband samt tydligare struktur med rubriker som innefattar allt på varje uppslag. Den optimala förenklade faktatexten vore antagligen en kort text med tydliga orsakssamband och författarröst, men det är två faktorer som är svåra att kombinera.

     

  • 4508.
    Svogor, I.
    et al.
    University of Zagreb, Croatia.
    Crnkovic, Ivica
    Mälardalen University, School of Innovation, Design and Engineering. Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
    Vrcek, N.
    University of Zagreb, Croatia.
    An extended model for multi-criteria software component allocation on a heterogeneous embedded platform2013In: Journal of Computing and Information Technology, ISSN 1330-1136, E-ISSN 1846-3908, Vol. 21, no 4, p. 211-222Article in journal (Refereed)
    Abstract [en]

    A recent development of heterogeneous platforms (i.e. those containing different types of computational units such as multicore CPUs, GPUs, and FPGAs) has enabled significant improvements in performance for real-time data processing. This potential, however, is still not fully utilized due to the lack of methods for optimal configuration of software; the allocation of different software components to different computational unit types is crucial for getting the maximal utilization of the platform, but for more complex systems it is difficult to find ad-hoc a good enough or the best configuration. With respect to system and user defined constraints, in this paper we are applying analytical hierarchical process and a genetic algorithm to find feasible, locally optimal solution for allocating software components to computational units.

  • 4509.
    Svogor, Ivan
    et al.
    FOI, University of Zagreb, Croatia.
    Carlson, Jan
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
    SCALL: Software Component Allocator for Heterogeneous Embedded Systems2015In: ECSAW '15 Proceedings of the 2015 European Conference on Software Architecture Workshops, Dubrovnik/Cavtat, Croatia: ACM , 2015, Vol. Article No. 66Conference paper (Refereed)
    Abstract [en]

    Cyber-physical systems have become complex and pervasive over time. They evolved from simple, single-task systems to systems with a large set of functionalities, connected to the Internet, distributed, multi-core, and with user-centric intuitive interfaces. Such an evolution advocates for better software architecture adapted to such systems. The SANCS 2015 workshop aims at gathering both practitioners and researchers on these topics to explore the next generation of cyber-physical systems.

  • 4510.
    Swanström, Malin
    Mälardalen University, Department of Innovation, Design and Product Development. Mälardalen University, School of Innovation, Design and Engineering.
    Produktion av informationsmaterial till nyinflyttade studenter i Eskilstuna2008Independent thesis Basic level (degree of Bachelor), 10 points / 15 hpStudent thesis
    Abstract [sv]

    Jag har genomfört ett examensarbete i ämnet informationsdesign med inriktning textdesign, i samarbete med Eskilstuna Kommunfastigheter AB. Syftet med detta var att komma fram till en eller flera lämpliga informationskanaler att kommunicera gentemot målgruppen nyinflyttade studenter, och därefter producera ett informationsmaterial som passar i den valda informationskanalen. Informationen som EskilstunaKommunfastigheter ville nå ut med var att informera om sig själva, och de möjligheter de erbjuder studenter, vilket kortfattat har utgjort innehållet i informationsmaterialet. Jag har använt mig av både kvantitativ metod (genom en enkätundersökning) samt kvalitativ metod (genomutprovningar) vid genomförandet av informationsmaterialet.Jag kom fram till att den informationskanal som nyinflyttade studenter föredrar är internet, och på andra plats direktutskick från Eskilstuna Kommunfastigheter. Således har jag producerat ett informationsmaterial, i form av en tidning, som bör läggas på webben, men som också kan användas som direktutskick till målgruppen.

  • 4511.
    Swenberg, Thorbjörn
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation. Dalarna University, Sweden.
    Editorial intentions and viewer perceptions: An audiovisual methodology for studying film editing and eye movements2016In: Visual Methodologies, ISSN 2040-5456, Vol. 4, no 2, p. 13-33Article in journal (Refereed)
    Abstract [en]

    This article presents an audio-visual methodology, VOSMET, designed to address activities of the craft of film editing, with a focus on the use of perception, and its implications. The methodology employs 13 different visual aspects and five different audio aspects, starting with video-recording observations of an editor, and ending with the analysis of eye-tracking data from film viewers. Craft research needs methodologies that address craft activities and cognitive approaches. Design practices share a similar need for reaching deeper understanding. It is neither established how film editors achieve perceptual precision in continuity editing in practice. The VOSMET methodology simultaneously captures bodily actions, utterances, software events, and keystrokes, along with the audiovisual material under processing, and uses graphics to distinguish between what takes place. The methodology also contributes by grasping what a film editor attends to, how this attention functions, as well as how perceptual factors are handled by the film editor. Finally, the methodology can evaluate editorial intentions against film viewer perceptions.

  • 4512.
    Swenberg, Thorbjörn
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation. Dalarna University, Sweden.
    Editorial intentions and viewer perceptions: Audiovisual methods for studying film editing and eye movements2015Conference paper (Other academic)
    Abstract [en]

    This presentation describes the methods used in a research project on continuity film editing and its effects on viewer perception.  Film editing is considered a form of audiovisual design work in which visual perception plays a significant role. The study analyzes audiovisual design work in terms of nine different visual aspects and four different audio aspects. The audio aspects are the making of a soundtrack to a documentary film sequence, recordings of conversations during observations, and the viewing of the film sequence, as well as an analysis of those recordings. The visual aspects include the editing of the documentary film sequence, recordings of the editor at work (together with an observing researcher) generating video images of the work, and a continuous screen-recording including computer keystrokes. An altered second version of the film in which the edits were altered was created, and both versions were used as stimuli in an eye tracking study with 30 participants. Finally, eye-tracking data was analyzed in terms of eye-movements, and areas of interest, in order to determine the importance of perceptual precision. When perceptual precision is poor, the viewer’s eyes make extra movements to adjust or miss the area of interest, or the viewer’s cognitive load increases. Examples are given in the presentation, and it is suggested that these methods make it possible to identify key audiovisual factors that a film editor considers, which constitute viewer-friendly and viewer-challenging (i.e. ’smooth’ and ‘harsh’) moving image editing. This knowledge has not been documented experimentally before, and understanding how perceptual precision determines viewer-friendly or viewer-challenging film editing is a key factor in helping inexperienced film editors learn how to achieve their audiovisual intentions. It also contributes to the academic understanding of perceptual considerations in design work.

  • 4513.
    Swenberg, Thorbjörn
    Mälardalen University, School of Innovation, Design and Engineering. Dalarna University.
    Framing the Gaze: (Audio-) Visual Design Intentions and Perceptual Considerations in Film Editing2017Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    The theme for this doctoral thesis focuses on how a film editor strives actively to perceptually frame and direct the film viewer’s gaze across film edits. The editor’s (audio-)visual intentions concerning the film viewing correspond to perceptual considerations that the editor makes during film editing.

    Film editing in this thesis is considered as a kind of design work, foremost motivated by the possibilities of many new approaches, questions, and answers that a design perspective brings, stretching well beyond what previously adopted perspectives have done.

    The research questions asked, as well as the presented results, are discussed with regard to design theory, established film production field knowledge, and perception research. Apart from considering audiovisual perception in a film editing context, film editing is also discussed as audiovisual design, and tentative implications for the role of perception in other kinds of design work are pointed out.

    The results of my analyses are that there is reason to consider parts of film production as design work; that properties of an audiovisual material affect the creative space; that perceptual considerations are a significant part of the film editor’s treatment of the audiovisual material; that film viewers’ response to film edits varies with the shape of the edits; and that this variation is possible to link with the film editor’s intention regarding the edits, as well as to the degree of fulfillment of the intention.

    I conclude that perceptual precision at the edit point is decisive for attaining a desired film-viewing decoding of a film sequence, and that when the perceptual precision is low, it is likely that the perceived continuity of the film fails.

    The contribution of this doctoral thesis is that it drives the investigation of actual appliance of perception as audiovisual knowledge in film editing. Hence, it also adds to the more general discussion on perception as part of audiovisual thinking, and how audiovisual knowledge is formed.

    The thesis contributes to the area of Innovation and Design through its mix of methods, since the main study considers the creation of new artefacts, the thinking going on during that process, as well as human responses to the artefacts. Conclusively, the thesis provides a thorough example of how a design research perspective can add to the understanding of film production, and its trades and activities.

  • 4514.
    Swenberg, Thorbjörn
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation. Dalarna University.
    Kvalitetsbedömning inom högre medieproduktionsutbildning2015Conference paper (Refereed)
  • 4515.
    Swenberg, Thorbjörn
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation. Dalarna University.
    Media Production or Audiovisual Design?2013In: / [ed] Ali Simsek, Agah Gumus, Fahme Dabaj, 2013, p. 128-134Conference paper (Other academic)
    Abstract [en]

    Media production includes many moments of creative work that would be best addressed as audiovisual design. The two paradigmatic understandings of design, ‘design-as-problem-solving’ (Simon, 1996), and ‘design-as-meaning-creation’ (Krippendorf, 1995), have bearing on those work-moments. The issues dealt with during those media production work-moments, as well as the problems to solve and the characteristics of the work-processes in use, resemble issues, problems and process characteristics familiar within design work (Sato & Poggenpohl, 2009).From a perspective of communication, audiovisual communication preferably is addressed as multimodal (Kress & van Leeuwen, 2001) where both strata, design and production, are considered to make important impact on a message.This paper discusses the theoretical implications of considering media production as audiovisual communication during its process of being created, where design is an integrated part of that process. The benefits of considering media production as audiovisual design are proposed from a design research perspective, and are compared with other perspectives.

  • 4516.
    Swenberg, Thorbjörn
    Mälardalen University, School of Innovation, Design and Engineering.
    Postproduction Agents: Audiovisual Design and Contemporary Constraints for Creativity2012Licentiate thesis, comprehensive summary (Other academic)
    Abstract [en]

    Moving images and sounds are processed creatively after they have been recorded or computer generated. These processes consists of design activities carried out by workers that hold ‘agency’ through the crafts they exercise, because these crafts are defined by the Moving Image Industry and are employed in practically the same way regardless of company.

    This thesis explores what material constraints there are for such creativity in contemporary Swedish professional moving image postproduction. The central aspects concern digital material, workflow and design work as distributed activities. These aspects are coupled to production quality and efficiency at the postproduction companies where production takes place.

    The central concept developed in this thesis is ‘creative space’ which links quality and efficiency in moving image production to time for creativity, capacity of computer tools, user skills and constitution of digital moving image material. Creative spaces are inhabited by design agents, and might expand or shrink due to material factors. Those changes are coupled to parallel changes in quality and efficiency.

  • 4517.
    Swenberg, Thorbjörn
    Mälardalen University, School of Innovation, Design and Engineering.
    Visual Intention in Moving Image Editing and Eye-tracking Methodology: An exploratory study2010In: Proceedings of the International Conference on Information Visualisation 2010 / [ed] Ebad Banissi, Stefan Bertschi, Remo Burkhard, John Counsell, Mohammad Dastbaz, Martin Eppler, Camilla Forsell, Georges Grinstein, Jimmy Johansson, Mikael Jern, Farzad Khosrowshahi, Francis T. Marchese, Carsten Maple, Richard Laing, Urska Cvek, Marjan Trut, 2010, p. 381-387Conference paper (Refereed)
    Abstract [en]

    Moving images production teams’ skills in directing the visual perception of viewers have been confirmed lately through eye-tracking methodology. One interest lies in explaining the use of different techniques by the production team for its realization of visual intentions. These intentions are however many in most moving images. This paper undertakes the development of a method for grasping the film or video editors’ intentions with the editing of moving images, and has been carried out as an exploratory study. The method suggested considers conventions of the trade, observational study with running screen-dump and proximate interviews with editors on specific edits, as well as the testing of moving image sequences where the intention of each edit point is known. The test is conducted on viewers, with the use of eye-tracking techniques. The findings are that the method should be useful in distinguishing between when the editors’ grip on the audience is firm, and when it is rather vague. But the method also suggests new aspects of understanding the viewers’ gazes when watching moving images.

  • 4518. Swenberg, Thorbjörn
    et al.
    Eriksson, Per Erik
    Mälardalen University, School of Innovation, Design and Engineering.
    Creative Space in Contemporary Swedish Moving Image Production2012In: Journal of Integrated Design & Process Science, ISSN 1092-0617, E-ISSN 1875-8959, Vol. 16, no 4, p. 55-72Article in journal (Refereed)
    Abstract [en]

    Production of moving images is turning completely digital. This leads to new possibilities and new constraints for creativity within film and TV production chains.

    This paper describes professionals’ current comprehension of the consequences of the shift from celluloid to digital technologies, within the Swedish Moving Image Industry. New technologies bring new workflows, new design processes and new constraints.

    We aim to illuminate factors that affect design creativity in digital moving image production, by addressing questions about production related responses to the digital turn as well as the affects of such responses on creativity.

    Inspired by Ingar Brinck’s creativity theories (1999, 2007) we view aesthetic problem solving as a cognitive process and suggest creative spaces to be the critical phenomenon to manage. We also use organization theories, particularly the work of Katherine Miller (2011) to explain why creativity ought to be a primary management concern.

    The empirical material used is semi-structured interviews with management personnel in Swedish moving image production companies. Outcomes include that the variety of digital formats available today is hard for crafts people to overview. This has brought costly workflow constraints that largely limit creativity.

    We suggest a pre-production file format check-list as a tool to support design management.

  • 4519.
    Swenberg, Thorbjörn
    et al.
    Dalarna University, Sweden.
    Eriksson, Per Erik
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation. Dalarna University, Falun, Sweden.
    Effects of Continuity or Discontinuity in Actual Film Editing2018In: Empirical Studies of the Arts, ISSN 0276-2374, E-ISSN 1541-4493, p. 222-246Article in journal (Refereed)
    Abstract [en]

    The film editor’s task in refining film edits by frame-by-frame matching is an important undertaking in perceptual precision. This article investigates whether the failure of a few frames jeopardizes the perceived continuity of a film. Thirty-three Swedish students were eye-tracked while watching two versions of the same documentary film sequence; one version was completed to continuity satisfaction by a film editor, while the other had some frames altered toward discontinuity. Gaze hits in Areas-of-Interest appointed by the film editor, saccade frequency, and pupil dilation after edit points were measured. No significant difference was found for hits in Areas-of-Interest, whereas saccade frequency and relative pupil size increased after edits in the altered version of the film sequence. Results indicate that the altered film sequence constrained viewers with possible cognitive effects, implying that frame-by-frame matching of film edits achieved by film editors is crucial to film continuity.

  • 4520.
    Swenberg, Thorbjörn
    et al.
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation. Dalarna University, Sweden.
    Eriksson, Per Erik
    Dalarna University, Sweden.
    Film and TV Industry Responses to Research Results in a Workshop Setting2015In: IASDR2015 Interplay Proccedings / [ed] Vesna Popovic, Alethea Blacker, Ding-Bang Luh, Nithikul Nimkulrat, Ben Kraal, and Yukari Nagai, 2015, p. 1917-1931Conference paper (Refereed)
    Abstract [en]

    Immediate return of results to the Swedish film and TV industry from researchers conducting ongoing research within the field is rather unusual. As a design research approach we, as researchers, adopted this method in order to disseminate results and confront a wider group of interest parties than those represented by our informants.

    The results from the research project, New Design Processes in the Audiovisual Industry, revealed that the transition from recording on celluloid with analogue film cameras to using high definition video cameras presented new cruxes for the film and TV industries (Eriksson & Swenberg, 2012). These cruxes preliminary concerned the choice of proper video codecs and file formats and how to configure them, in order to reinforce efficient workflow later in the production chain.

    Members of the industry and educators were invited to participate in public workshops, held at Dalarna University, where these results were presented along with expert solutions to the problems. Questionnaires were distributed among participants before the start of each workshop, as well as at the end. Seminars and panel discussions, both consisting of question and answer sessions for participants were video-recorded.

    The responses extrapolated from industrial representatives show an urgent need for discussion regarding the situation of digital cruxes within the film and TV industry. The Q & A sessions confirmed the widespread need for understanding several of the problems that had emerged. In the questionnaires, many industrial representatives expressed their appreciation for the opportunity to understand the nature of problems, how widespread they were, how to address them, and how to fill some of the most critical prevalent knowledge gaps.

  • 4521.
    Swenberg, Thorbjörn
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Eriksson, Per Erik
    Mälardalen University, School of Innovation, Design and Engineering.
    Yvonne, Eriksson
    Mälardalen University, School of Innovation, Design and Engineering.
    Workflow Management in Design Processes in Professional Audiovisual Production and Design Management Support2012In: / [ed] Dr. Wolfgang Reisig, Dr. Sang Suh, Society for Design and Process Science , 2012Conference paper (Refereed)
    Abstract [en]

    This paper deals with the need for design management support within the Audiovisual Industry, due to the increasing variety of video file formats and codecs available to professionals. The amount of video file formats and codecs are referred to as ‘the file format jungle’ by moving image professionals, and needs to be navigated by managerial staff that are not electronic engineers or technicians, but responsible for audio-visual design work within film and TV production.

    We have evaluated a prototype for a design management support tool that compares file formats and codecs for different production tools, with the help of Swedish moving image industry producers. The core principals of the support tool prototype are found to cohere with the needs for design management support within film and TV production, and the tool is therefore an option for commercial development.

  • 4522.
    Swenberg, Thorbjörn
    et al.
    Dalarna University, Sweden.
    Eriksson, Yvonne
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Film and TV production as audiovisual designIn: International Journal of Visual DesignArticle in journal (Refereed)
  • 4523.
    Swenberg, Thorbjörn
    et al.
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation. Dalarna University, Sweden.
    Sverrisson, Árni
    Dalarna University, Sweden; Stockholm University, Sweden.
    Agents, design and creativity: A postproduction analysisArticle in journal (Refereed)
    Abstract [en]

    The purpose of this paper is to clarify major issues in production planning and collaboration in the making of assemblies of moving images and soundtracks (postproduction of film, TV-programs et cetera). We argue that worker creativity in the making of such assemblies is constrained by the digitalization of production technology. We also argue that the members of each craft that collaborate in the process have their own set of aesthetic and technical problems that need to be solved and that the possible solutions are constrained by the creative space accorded to each craft. Participants do not necessarily subscribe to this idea and any theoretical understanding of the process must also account for the variety of notions put forward by the agents. We give examples from the Swedish TV show, Värsta Språket, from interviews and technical writing in order to clarify and support these arguments.

  • 4524.
    Swetha, A.
    et al.
    Amrita Vishwa Vidyapeetham, India .
    Anisha Asmy, N. R.
    Amrita Vishwa Vidyapeetham, India .
    Radhamani Pillay, V.
    Amrita Vishwa Vidyapeetham, India .
    Kumaresh, V.
    Amrita Vishwa Vidyapeetham, India .
    Saravana Prabu, R.
    Amrita Vishwa Vidyapeetham, India .
    Punnekkat, Sasikumar
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
    Dasgupta, S.
    Mohandas College of Engineering & Technology, India.
    Algorithm for autonomous cruise control system-real time scheduling and control aspects2014In: Advances in Intelligent Systems and Computing, 2014, p. 449-456Conference paper (Refereed)
  • 4525.
    Swetha, A.
    et al.
    Amrita Vishwa Vidyapeetham University, India .
    Radhamani Pillay, V.
    Amrita Vishwa Vidyapeetham University, India .
    Punnekkat, Sasikumar
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
    Dasgupta, S.
    Mohandas College of Engineering & Technology, India .
    Hard aperiodic scheduling in fault tolerant cruise system-comparative evaluation with dual redundancy2014In: Advances in Intelligent Systems and Computing, 2014, p. 589-596Conference paper (Refereed)
    Abstract [en]

    A scheduling algorithm for hard real-time systems with aperiodic task arrivals and fault tolerance can basically meet the needs of applications in the automotive or avionics domain. In these applications, weight, size and power requirements are crucial. Any resource augmentation technique to satisfy this and ensuring safe functionality under faults can bring in a paradigm shift in the design. This paper is based on a strategy for fault tolerance with task level criticality on dual processor system. An application with parallelizable task set has been used to advantage for resource augmentation under fault free condition. A processor failure (permanent fault) leads to safe recovery mechanism with graceful degradation. This paper deals with fault tolerant periodic task scheduling with arrivals of hard aperiodic events. An algorithm for aperiodic scheduling with admission control plan for hard and soft aperiodic tasks is developed and implemented on LPC2148 processors for the cruise system. A comparison is made with a traditional dual redundant system with appropriate performance metrics for evaluation.

  • 4526.
    Swetha, Annam
    et al.
    Amrita University, India.
    Pillay, Radhamani
    Amrita University, India.
    Punnekkat, Sasikumar
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
    Design, Analysis and Implementation of Improved Adaptive Fault Tolerant Model for Cruise Control Multiprocessor System2014In: International Journal of Computer Applications, ISSN 0975-8887, Vol. 86, no 15, p. 19-26Article in journal (Refereed)
    Abstract [en]

    Safety or mission critical applications have to recover from an error within an acceptable time window or it may potentially lead to disastrous effects or higher costs. The usual industrial practice is to employ fault tolerance using hardware redundancy where costs are highly exorbitant depending on the mission. In this paper, we present a framework for adaptive fault tolerance on the commonly used hardware redundancy. This proposed model gives enhanced resource management and improved system performance under normal runtime and provides minimal safe functionality under error conditions. A new scheduling method, a combination of dynamic planning and dynamic best effort approach has been designed for joint scheduling of periodic and aperiodic tasks which also include online reconfiguration for error management. This fault recovery technique allows all critical tasks to meet their deadlines and the system continues functioning with minimal safe functionality upon errors. This model has been analyzed and evaluated on a practical case study of a Cruise Control System vis- à-vis a traditional redundancy scheme with simulation and validated with appropriate performance metrics. The results demonstrate the high performance throughput and process speedup (Execution time of process) that can be gained by applying this model to an m-processor redundancy model and the advantages can be accrued specially in the field of avionics in terms of fuel/weight ratio.

  • 4527.
    Sycofyllos, Nikolaos
    Mälardalen University, School of Innovation, Design and Engineering.
    An Empirical Exploration in the Study of Software-Related Fatal Failures2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This thesis investigates and explores the subject of software-related fatal failures. In our technology oriented society, deadly disasters due to software failures are not that uncommon as we might think. During recent years there has been a large amount of software-related fatal failures documented, although there have not been as far as we are aware of, any research studies trying to put those failures in the context of a wider evidence. That fact motivated us to answer two research questions: how many lives have been lost through failures of software and what is the nature of the main cause of software-related fatal failures. The aim of this thesis is to explore these questions and provide some empirical answers and also contribute to the knowledge of these failures.Our goal is to provide an empirical and conceptual basis for investigating fatal software failures that will attempt to place these failure examples in a wider record. A similar study has been conducted by Donald MacKenzie in the area of computer related failures but it is not directly answering our questions of interest and it is somehow outdated. Computer scientist Peter Neumann has done a lot of research in computer safety and is also the author of a wide collection of computer failure cases named “Risks to the public in computer and related systems” also called “RISKS” Reports. Those reports were the main source of our investigation and answers were given out of data collected from those reports. The methodology used in this research was an exploratory systematic review study. Starting off by defining Software-Related Fatal Failures (SRFF) and the inclusion criteria for the cases to be investigated, allowed us to avoid misinterpretations and collect the data in a better way. We searched through the “RISKS” reports and collected cases according to our criteria. The final collected data was reviewed and analyzed. Finally the results were illustrated and presented in terms of tables, plots, charts and descriptive statistics. We found out that in the “RISKS” reports, over 2600 people have lost their lives due to software-related failures and the majority of those failures had been caused by problematic user-software interaction. While answering our research questions we observed based on the information related to fatal software failures that the topic of SRFF is poorly investigated. Our research provides agood basis for future investigation and aims to trigger further research in the subject ofsoftware-related fatal failures.

  • 4528.
    Syed, Wajahat Ali
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Kali, Rahul Raj
    Mälardalen University, School of Innovation, Design and Engineering.
    Environmental KPI's for management and improvements in manufacturing: Increase employee sustainability commitment for Lean and Green production at ABB2013Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Problem Statement: How does ABB Ludvika facilitate sustainable development in technology, green production with green KPI’s? The purpose of the thesis is to develop a general concept of environmental KPIs for management and improvement in manufacturing.  Environmental KPIs can be a main driving factor for work improvement and they will be managed for the continuous improvement in company. The concentration is on the shop floor level including production management (on team levels and department levels). The capability of using different (standardized) KPIs for management and control and more flexible/dynamic KPIs on a local level for enhancing improvements on a daily basis should be investigated. This concept will be clarified to be understood by researchers and companies if they want to implement it. The aim of this thesis is to attain sustainability and to suggest possible gaps between the point of view of researchers and practitioners. The other objective is to find out the key factors involved in production processes that have significant effect on sustainable, and hence the environment. 

  • 4529.
    Syrén, Dania
    Mälardalen University, School of Innovation, Design and Engineering.
    Creating Concept Sketches for Game Developers: Sketches that inform and inspire2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The objective of this project is to understand how information design– specifically informative illustration– can contribute to producing concept sketches for a science-fiction/puzzle game called Sky’s Edge.

    Through theoretical studies and research methods, I aimed to deepen my understanding of what makes a concept image a good one, and from that, I aimed to determine how informative illustration can help in designing and sketching the ideas that the job requester needed.

    The conducted theoretical studies indicated that a good concept image is one that contains ideas which are easily understood/communicated, can inspire the team, and in turn generate further discussion. They also revealed the vast advantages of thumbnail sketching– which can lead to the development of stronger ideas and compositions. Refined sketches and drawings are produced thereafter to present these ideas to the development team.

    The purpose of the resulting collection of concept images was to unify the visual direction of the team responsible for developing the game.

  • 4530.
    Szreder, Agnieszka
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Selim, Inas
    Mälardalen University, School of Innovation, Design and Engineering.
    En bomlös sadel med tryckavlastande egenskaper2011Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Rapporten innehåller redovisningen av examensarbetet utfört under vårterminen 2011 i kurs KPP301. Arbetet koncentrerades kring konceptframtagningen av en bomlös sadel med hänsyn till uppdragsgivarens, Linda Persson, önskemål. Uppdragsgivaren driver enskild firma Equra och möter i sitt dagliga arbete skadade hästar. De flesta skador som hästar lider av är orsakade av dåligt anpassade traditionella sadlar som i sin konstruktion har en hård och oelastisk bom. Den nya sadeln skulle vara utan den problematiska bommen men garantera lika bra tryckfördelning och stöd. Arbetet koncentrerades kring materialsökning och konstruktion för att uppfylla kravet.

    För att underlätta realiseringen av angivna mål användes under arbetets gång olika verktyg. I början skrevs en Gantt-schema för att planera och systematisera arbetet. Därefter utfördes marknadsundersökning för att uppskatta behov av bomlösa sadlar. Funktionsanalys och kravspecifikation skrevs för att inget krav skulle glömmas.

    Vid idégenereringsfasen dök olika frågor upp och många koncept som sedan förfinades i konceptgenereringsfasen till konkreta lösningar. Samtidigt beaktades kundernas behov och önskemål samt konkurrerande produkter analyserades. Egna lösningar jämfördes med konkurrenter i Pughs matris och den bästa utsågs för vidare förfining. Det utvalda konceptet bearbetades för att ännu bättre uppfylla uppdragsgivarens krav och kundernas behov. Produktens utseende anpassades efter Equras image. Till slut testades konceptet i en FMEA och beaktades i DFM och DFA verktyg. Produktens servicedelar togs fram och listades samt priset på prototypen föreslogs.

    Den färdiga sadeln visualiserades med hjälp av programmet Solid Works för att underlätta förståelse för produktens konstruktion och funktion. Modellen kommer också att vara till nytta för andra som ska arbeta vidare med problemet.

    Sadeln i sin utseende skapar känsla av komfort och säkerhet. Bossor, tryckavlastande paneler och kuddar samt sitsen är fyllda med tryckavlastande Relieverskum som garanterar jämn tryckfördelning över hästens rygg och komfort åt ryttaren. Borttagbara vulster och lårstöd möjliggör anpassning av sadeln efter ryttarens behov. Fickor gör det omöjligt för knäna att åka för långt fram. Den djupa sitsen ger stöd och bra balans. Hela sadeln är klädd i svart läder och mocka genomsydd med grönt snöre.

     

    Ingen prototyp gjordes på grund av begränsad tid, för liten kunskap inom sadelmakeri och ingen tillgång till specialiserade maskiner. Resultatet blev ett färdigt helhetskoncept som kan användas som stöd vid tillverkning av sadeln hos en sadelmakare eller som utgångpunkt för vidare arbete. Det behövs mycket mer arbete innan produkten kan släppas på marknaden, framför allt undersöka den verkliga tryckfördelningen.

  • 4531.
    Sääf, André
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Samuelsson, Alvin
    Mälardalen University, School of Innovation, Design and Engineering.
    Investigating Memory Characteristics of Corner Detection Algorithms using Multi-core Architectures2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In this thesis, we have evaluated the memory characteristics and parallel behaviour of the SUSAN (Smallest Univalue Segment Assimilating Nucleus) and Harris corner detection algorithms. Our purpose is understanding how the memory affects the predictability of these algorithms and furthermore how we can use multi-core machines to improve the execution time of such algorithms. By investigating the execution pattern of the SUSAN and Harris corner detection algorithms, we were able of breaking down the algorithms into parallelizable parts and non-parallelizable parts. We implemented a fork-join model on the parallelizable parts of these two algorithms and we were able to achieve a 7.9--8 times speedup on the two corner detection algorithms using an 8-core P4080 machine. For the sake of a wider study, we also executed these parallel adaptations on 4 different Intel platforms which generated similar results. The parallelized algorithms are also subjects for further improvement. We therefore investigated the memory characteristics of L1 data and instruction cache misses, cycles waiting for L2 cache miss loads, and TLB store misses. In these measurements, we found a strong correlation between L1 data cache replacement and the execution time. To encounter this memory issue, we implemented loop tiling techniques which were adjusted according to the L1 cache size of our test systems. Our tests of the tiling techniques exhibit a less fluctuating memory behaviour, which however comes at the cost of an increase in the execution time.

  • 4532.
    Söder, Erik
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Horneman, Louise
    Mälardalen University, School of Innovation, Design and Engineering.
    Develop competitive production systems by including sustainability at conceptual modeling2018Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    In today’s market, sustainability has become an important competitive priority, affecting the way manufacturing companies need to develop their production systems. Increased external pressure from stakeholders, customers, law and regulations, as well as the undeniable consequences of the environmental crisis, causes a need for more sustainable production patterns. This affects manufacturing companies, since the social and environmental dimension of sustainability no longer can be ignored if companies want to retain their competitive position. Therefore, this thesis proposes a conceptual modeling framework that includes both sustainability and operational goals, with purpose to support manufacturers who want to develop sustainable production systems with the help of discrete event simulation.

    Empirical evidence from Swedish automotive industry indicates an unlocked potential in applying this framework to a discrete event simulation project, and findings in current research shows that alignment of sustainability and operational goals during production system development can help manufacturing companies achieve increased competitive advantage. However, there is two limitations to current knowledge; firstly, on how to align sustainability and operation goals in the early phases of a discrete event simulation project, namely at conceptual modeling; secondly, a lack of focus on conceptual modeling in discrete event simulation. In order to examine how to address this gap, a case study was conducted within the Swedish automotive industry, along with a literature study. As guidance in this work, four research questions were formulated and answered:

    RQ 1:    Why is the alignment between sustainability and operational goals important in development of production systems?

    RQ 2:    What sustainability goals may be included in a conceptual model in development of production systems?

    RQ 3:    What operational goals may be included in a conceptual model in development of production systems?

    RQ 4:    How can operational and sustainability goals be aligned in a conceptual model in development of production systems?

    As for the environmental dimension of sustainability, the goals that could be included at conceptual modeling are: pollution; emissions; and resource consumption. The most commonly involved operational goals at conceptual modeling are: quality and design; throughput; production layout and flow; automation levels; production volume; cycle times; lead times and change-over times; material handling; buildings and plant properties; storage and stock; capacity; price and costs.

  • 4533.
    Söder, Erik
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Vardanyan, Emilia
    Mälardalen University, School of Innovation, Design and Engineering.
    Rättvisande priser: En fallstudie på måleriavdelningen på Volvo Construciton Equipment2016Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Title Fair prices – A case study in Volvo Construction Equipment (CE)Keywords Cost allocation, product costing, fair cost allocation, activity allocation, valueaddedactivities.Purpose The purpose of this paper is to locate the value added activities, investigatewhich activity that differentiate the products best and see how the processtime/times for an activity can be used as an allocation key for allocating costs.The activities at the department of painting have been examined and the value-added activitiesof these have been identified. Two conclusions have been made by the work. The time that differentiate the products best are the manual time, the work performedby man. The more activities that the cost allocation includes the more correct and fair thecalculation will be. The sum of the time in the painting robot, the cleaning process andthe manual time result in good a basis for cost allocation. With the reservation that thework performed by man should be standardized.Product calculation is about allocation of the cost in a company, which is easier said than done.The problems related to cost allocation has been discussed back and forward the latest fiftyyears. How should companies allocate their costs, direct and indirect costs, on their productsand services to give their products and services a fair price? The direct costs are easy to deriveto their cost object, but the indirect costs are way harder to work with.This paper investigates which processes that are value-adding in the paint shop and from theseprocesses four scenarios are made. Every scenario is made of different value-added activitiesand their process times. The finance department at Volvo CE simulated a cost allocation withevery scenario as basis and the result of the simulation were analysed.The work has been done as a case study in the paint shop at Volvo CE. The authors are EmiliaVardanyan and Erik Söder. The supervisor at Mälardalens university are associated professorAntti Salonen and the supervisor at Volvo CE are manager production engineering assemblyJosef Lännerström.

  • 4534.
    Söderberg, Emma
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Tärnell, Emma
    Mälardalen University, School of Innovation, Design and Engineering.
    Organisationers förmåga till ständiga innovationer2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Sammanfattning

    Nyckelord: innovationsprocess, innovationskultur, innovationsklimat, arbetsprocess, innovationsledning

    Innovationsförmågan måste stärkas i Sverige för att möta de globala utmaningarna genom att individer, verksamheter, offentlig verksamhet samt civilsamhällets verksamheter skapar innovativa klimat. Offentlig verksamhet har en viktig funktion i samhället med att leverera ökad livskvalitet för befolkningen. Nya idéer i offentlig verksamhet kan leda till ökat värde genom att upprätthålla och stärka välfärden.

    Ett samarbete mellan Sveriges kommuner och landsting (SKL) och innovationsmyndigheten Vinnova har inletts för att främja innovation inom offentlig sektor bland annat genom projektet Innovationslust som drivs av Forskning och Utveckling i Sörmland (FoUiS) under år 2013-2015. Projektet har baserats på en modell för innovation kallad ”KINVO-modellen” med ett syfte att utvärdera modellen för framtida spridning lokalt, regionalt samt nationellt. Modellen har implementerats i fyra enheter i Eskilstuna Kommun samt Landstinget Sörmland för att starta ett innovationsfrämjande arbete med ambitionen att modellen har tagits tillvara på hos enheterna och skapat ett stadigvarande förhållningssätt för att främja innovation.

    Verksamhetsutvecklingsföretaget Tentio arbetar med ständig utveckling av olika verksamheter. Studien har utförts i samarbete med Tentio som har bidragit med sin modell för ständiga innovationer i organisationer.

    Studien ämnar undersöka två involverade enheter i projektet Innovationslust för att finna i vilken utsträckning deras arbetsprocesser främjar ständiga innovationer. Studien kommer ge en beskrivning av de två enheternas arbetsprocesser och skapa en förståelse för vart i innovationsprocessen som brister uppstår och som därmed hindrar ständiga innovationer. Förslag för en fullständig process har skapats till de två enheterna med förhoppning att gynna deras framtida innovationsarbete. Undersökningen har skett utifrån en kvalitativ metod med insamling av data via intervjuer med berörda parter inom projektet. Resultatet visar att båda enheterna har innovativa arbetsprocesser med identifierade förbättringsområden som presenteras under slutsatsen.

     

     

     

     

  • 4535.
    Söderberg, Stefan
    Mälardalen University, School of Innovation, Design and Engineering.
    A Case Study on the Creative Process of Making a Game for Cognitively Impaired Children2011Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 4536.
    Södergren, Natasha
    Mälardalen University, School of Innovation, Design and Engineering.
    Att färdas i symbios: ett gång -och cykelstråk anpassat efter trafikanternas rörelsemönster och behov2011Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The aim of this paper is to examine the layout of public spaces and its effect on human behavior with focus on the relation between pedestrians and cyclists movement patterns in a specific path. The study emanates from the security aspect of pedestrians and cyclists, and builds upon previous theories and empirical studies about perception, security, information design, environmental psychology and behavior. The result shows that individual behavior and movement pattern differs with age, purpose, physical- and other conditions, and layout of the surroundings. A design proposal for improved layout of a path and a node between different oncoming paths has been developed to aid the users’ needs, where a separation of walkways and bike lanes forms zones of security for the purpose of better orientation and a better flow between the users.

  • 4537.
    Söderling, Kristina
    Mälardalen University, School of Innovation, Design and Engineering.
    Ett läge för utveckling: En studie om flexibilitet och användbarhet i ett multifunktionellt rum till förmån för Mangyanbefolkningen i Filippinerna2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Detta arbete omfattar en studie angående ett blivande kompetensutvecklingscenter för urbefolkningen på ön Mindoro i Filippinerna. En central punkt på centret är ett rum avsätt för varierande verksamheter. Min studie omfattar hur detta rum på bästa sätt kan bidra till flexibilitet och användbarhet genom rumsliga element.

     

    En fallstudie utfördes i Filippinerna under perioden mars-maj 2012. En kvalitativ studie innefattande intervjuer, observationer, diskussioner, analyser och litteraturstudie, med fokus på visioner, hinder och förutsättningar.

     

    Analys av studien och designprocessen resulterade i ett gestaltningsförslag som skapar förutsättningar för inkludering och funktionalitet. Resultatet blev en stapelbar låda som går att använda som sittplats, en plats till förvaring, samt går att sätta ihop till önskade moduler. Detta medför flexibilitet och variation i miljön då rummet snabbt går att förändra efter behov.

  • 4538.
    Söderlund, Carina
    et al.
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Lundin, Jonatan
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    What is an Information Source? Information Design Based on Information Source Selection Behavior2016In: Communication Design Quarterly Review, ISSN 2166-1200, Vol. 4, no 3, p. 12-19Article, book review (Other academic)
    Abstract [en]

    This article examines information source selection behavior among maintenance technicians and how this behavior might infl uence the design of technical information. For this entry, “maintenance technicians” are individuals who maintain machine equipment (e.g., generators or bearings) in industrial enterprises, and this process includes the troubleshooting of problems and the repairing of machine equipment. In this entry, the authors use a review of the literature on information source selection behavior to discuss core concepts within the fi eld of source selection behavior. Three of the main concepts examined are “information,” “information source,” and “source preference criteria.” These core concepts function as a frame of reference for discussing how maintenance technicians might select information sources to perform maintenance activities. The authors also use these concepts to review why certain sources are selected for use over others. The results tentatively suggest maintenance technicians prefer information sources that can be adapted to specifi c workplace contexts.

  • 4539.
    Söderlund, Jesper
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Sörensen, Thomas
    Mälardalen University, School of Innovation, Design and Engineering.
    Test Process Improvement & Test/Build Tool Evaluation2010Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The products The Company manufactures are used in an area of the industry where errors leading to a stop in production can be quite expensive. Therefore are testing of the products important and the tests can also give indications about the quality of the products.

    The Company is in a phase where they are developing a new product line to support all existing and future products. In this phase, it was decided that all products will use a common framework for unit testing and a common build system for all products. One part of the thesis was to investigate and evaluate different frameworks for unit testing and tools for a build system. The unit test framework that were evaluated are Cppunit, cfix, NUnit, Boost test library, Unit Testing++ and CxxTest. The result of the evaluation was that CppUnit were recommended. For the build system MSBuild, NAnt, Automated Build Studio and Cruise Control .NET were evaluated. The recommended tools for a build system is MSBuild in combination with Cruise Control .Net if The Company is interested in the functionality Cruise Control .Net has to offer.

    The Company also has an interest in evaluating the current test processes and identify improvements as a part of The Company’ s objective were all products should follow a common test process. In order to identify these improvements a literature study of four test process improvement frameworks (Test Process Improvement, Test Maturity Model Integrated, Minimal Test Practice Framework and Test Improvement Model) were carried out. Out of these four frameworks Test Process Improvement (TPI) were chosen to assist when identifying improvements. With the help of TPI a limited assessment took place to give indications about the test maturity for three of The Company’s products where two of the products had low maturity. Results of the improvement measures can be summed up with the need to harmonize the documents, standardize and document the various processes.

    As a last part of the thesis the possibility to automate testing of two of the products graphical user interfaces with the program Test Complete were investigated. For one of the products the result was that it worked satisfactorily and for the other product it did not work at all. This resulted in recommendations for how The Company should proceed with automated testing of the graphical user interface.

  • 4540.
    Söderroos, Johan
    Mälardalen University, School of Innovation, Design and Engineering.
    Prediction of Expected Life Length of Motor Locks: Master Thesis in Electronics, Mälardalen University2010Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    ASSA AB develops different types of products that can be used in or around doors. ASSA offers a complete door solution to the customers. Many of these products are linked together and work for a complete formation of access control. ASSA has recently developed a new communications bus for some of their products. One advantage of the new communication bus is that each product should be able to offer different kinds of added values to the customers.

    This master thesis main focus is to find a model to describe the predicted life length of ASSA:s motor lock called 811C50, which includes a study that determine which environmental parameters that can affects the motor locks life length. This master thesis is also a pre-study for further work of an existing motor lock.

    The chosen test model, full parameter test, leads to a life length equation. This equation shall later on be implemented in the motor locks so the motor locks itself can predict its own life length. To make the equation completed different parameters, that can affect the motor locks life length, are needed. This can be implemented through different technological tests and to succeed with the test, right test equipment is needed. No establish test equipment was available, which required that new test equipment, which could test all motor locks, were build. On the bases from interviews with engineers at ASSA it was established that the following parameters probably can affect the motor locks life length: temperature, air humidity, dust, corrosion, side load and vibration. Not until certain factors and coefficients have been determined, for the equation, can the equation be used.

  • 4541.
    Söllvander, Johan
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Höglund, Denny
    Mälardalen University, School of Innovation, Design and Engineering.
    En brandväggslösning för TwigNETs datacenter med Juniper SRX2016Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Privatpersoner och företag hyr i allt större utsträckning molntjänster snarare än att själva driva ett datacenter. Kunder som använder molntjänster förväntar sig att dessa alltid är tillgängliga och säkra i ett datacenters händer. För att möta kunders förväntningar designas dagens datacenter med hög tillgänglighet, skalbarhet och säkerhet. Dagens datacenter designas utifrån hierarkiska trädtopologier med redundanta enheter och protokoll, vilket möjliggör både hög tillgänglighet och skalbarhet. Säkerheten uppnås via flera delar såsom brandväggar, spam- och DoS-skydd samt med ständigt uppdaterade enheter. Företaget TwigNET var i behov av en förnyad brandväggslösning och omstrukturering av sitt datacenter. Med målsättningen att ta fram den bästa brandväggslösningen för företaget så analyserades den befintliga brandväggslösningen i kombination med hur trafiken flödar till och från datacentret.Analysen användes som grund för att ta fram en ny lösning som designades för att kunna användas samtidigt som företagets befintliga lösning. I den gamla lösningen så delade alla servrar på en broadcast-domän. Den nya brandväggslösningen designades till att dela in varje server-kategori i en egen broadcast-domän, subnätverk och zon. Företagets redan etablerade policy för internetkommunikation återanvändes på de nya zonerna, men anpassades även för filtrering mellan dessa. Teknikerna chassis cluster, LACP och vPC användes för att uppnå hög tillgänglighet för brandväggarna utan att behöva använda active/active. När den nya brandväggslösningen var färdigställd så jämfördes Juniper SRX mot Cisco ASA för att belysa likheter och skillnader.

  • 4542.
    Sörensen, Kim
    Mälardalen University, School of Innovation, Design and Engineering.
    MANUFACTURING FOOTPRINT STRATEGY - COMING OUT OF THE “BLACK HOLE”: A positioning strategy with concept factories supporting the product life cycle and make-or-buy decisions2010Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The role of the manufacturing units has a big impact on a company’s business. If competitive priorities and the production weapons can be merged together and describe a factory profile, it can be a factor that provides the competitive advantages for the company. This thesis has two objectives in this area, the industrial and the academic.

    The industrial objective will investigate how we can visualize and describe a manufacturing structure and make the desired positioning. The manufacturing footprint structure will be set up according to the performance objectives Innovation, Flexibility, Lead-time and Efficiency representing the product life cycle that also support decisions for the make or buy process. The result is a model that describes the manufacturing structure and a conflict area, or a “Black Hole”, is indentified and is leading to the academic research questions; why most of the manufacturing units are positioned in the conflict area and how to leave the “Black Hole”? The intersection in the views of positioning, knowledge and the network paradox are analysed and a scaled model connected to Dreyfus knowledge model, brings some understanding to the positioning problem.

    A process model is proposed for the characteristic profiles of the concept factories and how to move to the desired positions. This concept can be applied on a group of manufacturing units and handle the trade off dilemmas for the separate units by letting a group of units achieve top performance for all the performance objectives. The visualization and relation to the products life cycle can contribute to communication and developing the manufacturing footprint strategy. The model has been tested, in a positioning context for strategic purchasing with experience of supplier quality audits for positioning suppliers, with positive result.

    Further research of top performance factories would be interesting to do in order to find out their 8M profiles and identify more trade off dilemmas, connecting them to the different performance objectives in order to support the development in moving to different desired directions.

  • 4543.
    Sörensen, Kim
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Wiktorsson, Magnus
    Mälardalen University, School of Innovation, Design and Engineering.
    Jackson, Mats
    Mälardalen University, School of Innovation, Design and Engineering.
    Towards a manufacturing strategy supporting make or buy decisions and a global manufacturing structure2009In: Swedish Production Symposium 2009, Göteborg, 2009Conference paper (Refereed)
  • 4544.
    T., Lennvall
    et al.
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
    G., Fohler
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
    Björn, Lindberg
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems. Ericsson Radio Systems, Gothenburg, Sweden.
    Handling aperiodic tasks in diverse real-time systems via plug-ins2002In: Proceedings - 5th IEEE International Symposium on Object-Oriented Real-Time Distributed Computing, ISORC 2002, 2002, p. 137-144Conference paper (Refereed)
    Abstract [en]

    Functionality for various services of scheduling algorithms is typically provided as extensions to a basic algorithm. A similar approach dominates operating system functionality: implementation of the actual real-time scheduling algorithm. In this paper, we propose the use of a plug-in approach to add functionality to existing scheduling schemes and provide for easy, replacement on the operating system level. In particular, we present an architecture to disentangle actual real-time scheduling from dispatching and other kernel routines with a small API, suited for a variety of scheduling schemes as plug-ins. We detail two plug-ins for aperiodic task handling and how they can extend two target systems, table-driven and earliest deadline first scheduling, using the approach presented.

  • 4545.
    T., Vale
    et al.
    Uni-versidade Federal Do Reɥoncavo da Bahia (UFRB), Brazil.
    Ivica, Crnkovic
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
    E.S., De Almeida
    Federal University of Bahia, Salvador, BA, Brazil.
    P.A.D.M., Silveira Neto
    RiSE, Reuse in Software Engineering, Recife, PE, Brazil.
    Y.C., Cavalcanti
    RiSE, Reuse in Software Engineering, Recife, PE, Brazil.
    S.R.D.L., Meira
    Federal University of Pernambuco, Recife, PE, Brazil.
    Twenty-eight years of component-based software engineering2016In: Journal of Systems and Software, ISSN 0164-1212, E-ISSN 1873-1228, Vol. 111, p. 128-148Article in journal (Refereed)
    Abstract [en]

    The idea of developing software components was envisioned more than forty years ago. In the past two decades, Component-Based Software Engineering (CBSE) has emerged as a distinguishable approach in software engineering, and it has attracted the attention of many researchers, which has led to many results being published in the research literature. There is a huge amount of knowledge encapsulated in conferences and journals targeting this area, but a systematic analysis of that knowledge is missing. For this reason, we aim to investigate the state-of-the-art of the CBSE area through a detailed literature review. To do this, 1231 studies dating from 1984 to 2012 were analyzed. Using the available evidence, this paper addresses five dimensions of CBSE: main objectives, research topics, application domains, research intensity and applied research methods. The main objectives found were to increase productivity, save costs and improve quality. The most addressed application domains are homogeneously divided between commercial-off-the-shelf (COTS), distributed and embedded systems. Intensity of research showed a considerable increase in the last fourteen years. In addition to the analysis, this paper also synthesizes the available evidence, identifies open issues and points out areas that call for further research. 

  • 4546.
    Tabikh, Mohamad
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Downtime cost and Reduction analysis: Survey results2014Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The purpose of this paper is to present a sample of how Swedish manufacturing companies deal with equipment downtime cost, and further how they analyze its reduction. The study was performed by conducting a web-based survey within Swedish firms that have at least 200 employees. The main results obtained from the investigation show that the estimated downtime cost constitute about 23.9 % from the total manufacturing cost ratio, and 13.3 % from planned production time. Additionally, the hourly cost of downtime, whether planned or unplanned, is relatively high.

    However, there is a shortage of systematic models that capable to trace the individual cost imposed by downtime events. This lack was shown apparently whilst 83 % of surveyed companies they do not have any complete model adapted for quantifying their downtime costs. Moreover, only few companies develop their cost accounting methods such as, activity-based costing (ABC) and resource consumption accounting (RCA) to assimilate and reveal the real costs that associated with planned and unplanned stoppages. Still, the general pattern of downtime cost calculation allocated to direct labor and lost capacity cost.

    On the other hand, the attempts of decreasing downtime events and thus costs were based on schedule maintenance tactics that supported by overall equipment effectiveness (OEE) tool, as an indicator for affirming improvements. Nonetheless, the analysis indicates the need for optimized maintenance tactics by incorporating reliability-centered maintenance (RCM) and total productive maintenance (TPM) into companies’ maintenance systems. The maintenance role of reducing downtime impacts not highly recognized. Furthermore, the same analysis shows the requirement for better results of performance measurement systems is by implementing total equipment effectiveness performance tool (TEEP). The advantage of such tool is to provide the impact index of planned stoppages in equipment utilization factor.

    Finally, the lack of fully integrated models for assessing the downtime costs and frameworks for distinguishing the difference between planned and unplanned stoppages are the main reasons behind the continuation of cost in ascending form. Due to that, the improvements will emphasize on areas with less cost saving opportunities. As a result, this will affect the production efficiency and effectiveness which in return has its influence on costs and thereby profits margin.

  • 4547.
    Tahvili, S.
    et al.
    Research Institutes of Sweden - RISE SICS, Västerås AB, Sweden.
    Ahlberg, M.
    Royal Institute of Technology (KTH), Stockholm, Sweden.
    Fornander, E.
    Royal Institute of Technology (KTH), Stockholm, Sweden.
    Afzal, Wasif
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
    Saadatmand, M.
    Research Institutes of Sweden - RISE SICS, Väster's AB, Sweden.
    Bohlin, M.
    Research Institutes of Sweden - RISE SICS, Väster's AB, Sweden.
    Sarabi, M.
    Bombardier Transportation AB, Väster's, Sweden.
    Functional Dependency Detection for Integration Test Cases2018In: Proceedings - 2018 IEEE 18th International Conference on Software Quality, Reliability, and Security Companion, QRS-C 2018, Institute of Electrical and Electronics Engineers Inc. , 2018, p. 207-214Conference paper (Refereed)
    Abstract [en]

    This paper presents a natural language processing (NLP) based approach that, given software requirements specification, allows the functional dependency detection between integration test cases. We analyze a set of internal signals to the implemented modules for detecting dependencies between requirements and thereby identifying dependencies between test cases such that: module 2 depends on module 1 if an output internal signal from module 1 enters as an input internal signal to the module 2. Consequently, all requirements (and thereby test cases) for module 2 are dependent on all the designed requirements (and test cases) for module 1. The dependency information between requirements (and thus corresponding test cases) can be utilized for test case prioritization and scheduling. We have implemented our approach as a tool and the feasibility is evaluated through an industrial use case in the railway domain at Bombardier Transportation (BT), Sweden.

  • 4548.
    Tahvili, Sahar
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
    A Decision Support System for Integration Test Selection2016Licentiate thesis, comprehensive summary (Other academic)
    Abstract [en]

    Software testing generally suffers from time and budget limitations. Indiscriminately executing all available test cases leads to sub-optimal exploitation of testing resources. Selecting too few test cases for execution on the other hand might leave a large number of faults undiscovered. Test case selection and prioritization techniques can lead to more efficient usage of testing resources and also early detection of faults. Test case selection addresses the problem of selecting a subset of an existing set of test cases, typically by discarding test cases that do not add any value in improving the quality of the software under test. Test case prioritization schedules test cases for execution in an order to increase their effectiveness at achieving some performance goals such as: earlier fault detection, optimal allocation of testing resources and reducing overall testing effort. In practice, prioritized selection of test cases requires the evaluation of different test case criteria, and therefore, this problem can be formulated as a multi-criteria decision making problem. As the number of decision criteria grows, application of a systematic decision making solution becomes a necessity. In this thesis, we propose a tool-supported framework using a decision support system, for prioritizing and selecting integration test cases in embedded system development. The framework provides a complete loop for selecting the best candidate test case for execution based on a finite set of criteria. The results of multiple case studies, done on a train control management subsystem from Bombardier Transportation AB in Sweden, demonstrate how our approach helps to select test cases in a systematic way. This can lead to early detection of faults while respecting various criteria. Also, we have evaluated a customized return on investment metric to quantify the economic benefits in optimizing system integration testing using our framework.

  • 4549.
    Tahvili, Sahar
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems. SICS Swedish ICT, Sweden.
    An Online Decision Support Framework for Integration Test Selection and Prioritization (Doctoral Symposium)2016In: The International Symposium on Software Testing and Analysis ISSTA'16, 2016Conference paper (Refereed)
    Abstract [en]

    Test case prioritization and selection techniques can lead to early detection of faults and can also enable more efficient usage of testing resources. The available methods of test case selection and prioritization suffer from one or several weaknesses. For example, most of them are only applicable at unit level and do not consider the increasing complexity when subsystems get integrated, especially in the context of embedded system development. Furthermore, the existing methods do not take into account results of current test execution to identify and optimize order for rest of the current execution (i.e., they are not online). In this paper, we propose a tool-supported framework, as an online decision support system (DSF), for prioritizing and selecting integration test cases for embedded system development. DSF provides a complete loop for selecting the best candidate test case for execution based on a finite set of criteria. The results of multiple case studies, done on a train control management subsystem from Bombardier Transportation (BT) in Sweden, demonstrate how our approach helps in a systematic way to select test cases such that it can lead to early detection of faults while respecting various criteria. We are also working towards proposing a customized return on investment (ROI) metric to quantify the economic benefits in optimizing system integration testing using our proposed DSF.

  • 4550.
    Tahvili, Sahar
    et al.
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems. RISE SICS Västerås, Sweden.
    Afzal, Wasif
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
    Saadatmand, Mehrdad
    RISE SICS Västerås, Sweden.
    Bohlin, Markus
    RISE SICS Västerås, Sweden.
    Hasan Ameerjan, Sharvathul
    ESPRET: A Tool for Execution Time Estimation of Manual Test CasesIn: Journal of Systems and Software, ISSN 0164-1212, E-ISSN 1873-1228Article in journal (Refereed)
    Abstract [en]

    Manual testing is still a predominant and an important approach for validation of computer systems, particularly in certain domains such as safetycritical systems. Knowing the execution time of test cases is important to perform test scheduling, prioritization and progress monitoring. In this work, we present, apply and evaluate ESPRET (EStimation and PRediction of Execution Time) as our tool for estimating and predicting the execution time of manual test cases based on their test specifications. Our approach works by extracting timing information for various steps in manual test specifcation. This information is then used to estimate the maximum time for test steps that have not previously been executed, but for which textual specifications exist. As part of our approach, natural language parsing of the specifications is performed to identify word combinations to check whether existing timing information on various test steps is already available or not. Since executing test cases on the several machines may take different time, we predict the actual execution time for test cases by a set of regression models. Finally, an empirical evaluation of the approach and tool has been performed on a railway use case at Bombardier Transportation (BT) in Sweden.

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