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  • 1.
    Al-Battat, Ahmed
    et al.
    KTH, School of Technology and Health (STH), Medical Engineering, Computer and Electronic Engineering.
    Anwer, Noora
    KTH, School of Technology and Health (STH), Medical Engineering, Computer and Electronic Engineering.
    Utvärdering utifrån ett mjukvaruutveckling perspektiv av ramverk för SharePoint2017Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The functionality was tested by two different tests, which showed that the product is suitable for usage in the intranet within a company or an organization, there are great benefits from using intranet as a tool for sharing of information. A good intranet contributes to a better flow of information and effective cooperation. SharePoint is a platform for intranet with interactive features, it makes the job easier for staff and even the company. The framework Omnia is a solution designed for Microsoft SharePoint 2013.This essay evaluates how Omnia acts as a framework and what the product is suitable for. Omnia framework evaluates carefully and is an independent assessment carried during this essay. The evaluation is based on scientific studies which are based on the qualitative and quantitative research methodology. The evaluator's main areas are based on system performance, scalability, architecture and functionality. A test prototype develops during the process in the form of an employee vacation request application by the development framework Omnia.The framework Omnia is considered to be suitable for the development of interactive web-based applications for SharePoint. The architecture for the system meets the requirements for scalable systems because it is based on the tier architecture. The system also has good performance but it needs to be improved if the number of users exceeds one thousand. The functionality of this product is quite suitable for the system's usage.

  • 2.
    Andersson, Marcus
    KTH, School of Technology and Health (STH), Medical Engineering, Computer and Electronic Engineering.
    Implementation av en metod för prestandamätning av sensorkommunikation med Bluetooth low energy2016Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Internet of Things develops and grows constantly. It becomes increasingly common that applications and units are connected through a network. One of the technologies used for wirelessly linking together units is Bluetooth Low Energy. Preferences for the quality of a connection can vary. It is therefore important to conduct measurements of performance in order to know advantages and disadvantages that a networking technology has. 

    This thesis is about measurements of performance during data transfers between mobile devices and wireless sensors, as well as monitoring parameters that are given during the measurements. One method using monitoring packets inspired from previously made research, were designed and implemented in a system for Bluetooth Low Energy, which was then evaluated.

    The result was that two systems were created that presented data loss, delay variation and throughput, continuously on a mobile device. One system used the method with monitoring packets. The other system used a self-made method which made measurements with high precision, but that places higher demands on functions and performance of the sensor node, and on the mobile device. Experiments were conducted by using the systems and resulting values were analyzed.

  • 3.
    Freij, Urban
    KTH, School of Technology and Health (STH), Medical Engineering, Computer and Electronic Engineering.
    Modelldriven arkitektur förbättrar hanteringen av problemet med import av data till ER-modeller2015Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In many situations it is desirable to import data from text files, excel files and similar to a database. To do so the data needs to be translated at some stage to an ER model (Entity Relationship), i.e. a model describing relevant parts of a database schema. The approach for this translation varies from case to case.

    During this thesis an application has been developed to import data to an ER model from a modeling perspective, in line with the Model Driven Architecture (MDA) ™. The gain lies in using a metamodel that describes how different models for transformation from grid tables to an ER mode may look like. The models in turn describe how the transformation will look, thus allowing the usage of several different models without any need of changes to the source code.

    The metamodel describing the transformation of data can be visualized in a class diagram. The class diagram schematically describes the relationships between tables of data to be imported from and the ER model the data will be transferred to. Preferable is to write a model in an XML that conforms to the metamodel. Therefore the class diagram should be transformed into an XML schema that enables validation of the model in the XML file.

  • 4.
    Reimers, Axel
    et al.
    KTH, School of Technology and Health (STH), Medical Engineering, Computer and Electronic Engineering.
    Gustafsson, Isak
    KTH, School of Technology and Health (STH), Medical Engineering, Computer and Electronic Engineering.
    Indexing and Search Algorithmsfor Web shops: 2016Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Web shops today needs to be more and more responsive, where one part of this responsivenessis fast product searches. One way of getting faster searches are by searching against anindex instead of directly against a database.

    Network Expertise Sweden AB (Net Exp) wants to explore different methods of implementingan index in their future web shop, building upon the open-source web shop platformSmartStore.NET. Since SmartStore.NET does all of its searches directly against itsdatabase, it will not scale well and will wear more on the database. The aim was thereforeto find different solutions to offload the database by using an index instead.

    A prototype that retrieved products from a database and made them searchable through anindex was developed, evaluated and implemented. The prototype indexed the data with aninverted index algorithm, and was made searchable with a search algorithm that mixed typeboolean queries with normal queries.

  • 5.
    Stefan, Vasic
    et al.
    KTH, School of Technology and Health (STH), Medical Engineering, Computer and Electronic Engineering.
    Nicklas, Lindgren
    KTH, School of Technology and Health (STH), Medical Engineering, Computer and Electronic Engineering.
    Product categorisation using machine learning2017Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Machine learning is a method in data science for analysing large data sets and extracting hidden patterns and common characteristics in the data. Corporations often have access to databases containing great amounts of data that could contain valuable information.

    Navetti AB wants to investigate the possibility to automate their product categorisation by evaluating different types of machine learning algorithms. This could increase both time- and cost efficiency.

    This work resulted in three different prototypes, each using different machine learning algorithms with the ability to categorise products automatically. The prototypes were tested and evaluated based on their ability to categorise products and their performance in terms of speed. Different techniques used for preprocessing data is also evaluated and tested.

    An analysis of the tests shows that when providing a suitable algorithm with enough data it is possible to automate the manual categorisation. 

  • 6.
    Westman, Mathias
    et al.
    KTH, School of Technology and Health (STH), Health Systems Engineering. KTH, School of Technology and Health (STH), Medical Engineering, Computer and Electronic Engineering.
    Larsson, Sara
    KTH, School of Technology and Health (STH), Medical Engineering, Computer and Electronic Engineering.
    Standardiserad lösningsprototyp vid implementation av Microsoft Dynamics CRM2015Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In the progress of satisfying customer needs and improving the bonds between buyers and sellers the companies use the business philosophy of Customer Relationship Management (CRM). Significant CRM investments are made by companies and various CRM vendors provide support for businesses through CRM-systems. CRM-systems often deliver features handling customer management, sales and marketing, but many companies only use the sales module of the CRM-system.

    Kentor is currently working with support and development on the Microsoft Dynamics CRM platform and wanted to study the possibility to generalize the sales module in the CRM-system to meet customer needs easier.

     

    This report contains an evaluation, comparison and generalization of three different CRM solutions. The evaluation was based on an analysis of three different CRM distributors as well as an analysis of three Microsoft Dynamics CRM solutions. The comparison and generalization were based on a scientific comparison methodology for IT-systems.

    The prototype was created from the result of the comparison and was considered a generalized solution but the authors did not regard the prototype to have sufficient generalized customizations for companies to take advantage of the solution.

  • 7.
    Zalet, Ayman
    KTH, School of Technology and Health (STH), Medical Engineering, Computer and Electronic Engineering.
    Vklass datalagring: En studie om datalagring på ett kostands- och prestandaeffektivt sätt2016Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The study in this report examines data storage for the application Vklass. The problem that has been studied in this work is that the application receives and stores a big amount of files which are stored on a server locally in Stockholm where back up is made to another server on a regular basis. Today’s implemented solution for data storage endorse that the server that stores the files continues to grow each month without further structure since all the upload files is stored in the same folder which yields a more complex and less lucid storage and management for the data. This yields limitations for the performance of the application when the backup-copy needs to be restored. The owners of the application request a solu-tion that gives a more effective management of the stored data with a cost and performance effective technique. The solution that will be presented in this study should also enable stor-ing data with a more lucid and convenient structure.

    The studied methods for the solution include storing data locally and data storage in the biggest public cloud services. The investigation and analysis of the chosen methods proved that data storage in cloud services fulfilled the requirements for the identified solution as opposed to the methods for storing data locally that proved to yield deficits which would not fulfill these requirements. The deduction of this study identified Microsoft Azure Sto-rage to be the best public cloud solution for the given problem since data is stored in a per-formance and structure effective way. It was also proven that even the most expensive sto-rage solution provided by Azure Storage lowered the costs for data storage by 84 percent compared to today’s data storage solution during the first five years.

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