Change search
ReferencesLink to record
Permanent link

Direct link
The Effect of Shape Properties on Ad-hoc Shape Replication with Mouse, Pen, and Touch Input
Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Informatics and Media, Human-Computer Interaction.
York University, Toronto, Canada.
2012 (English)In: MindTrek '12 Proceeding of the 16th International Academic MindTrek Conference / [ed] Artur Lugmayr, New York, NY, USA: ACM Press, 2012, 275-278 p.Conference paper (Refereed)
Abstract [en]

This paper summarizes observations from four empirical studies focusing on shape replication with three input methods. The aim was to identify and assess how the components of several semirandomly generated shapes influence how accurately untrained users can replicate each of these components. We found that the pen is the least and touch the most error-prone method when used for drawing. Additionally, the distribution of errors was analyzed. The results may be used to predict which shape properties make shape replication more difficult. Additionally, the results may be used to design shapes that are easy to replicate.

Place, publisher, year, edition, pages
New York, NY, USA: ACM Press, 2012. 275-278 p.
Keyword [en]
Mouse, stylus, pen, touch, shape, replication, tracing, drawing
National Category
Human Computer Interaction
Research subject
Human-Computer Interaction
URN: urn:nbn:se:uu:diva-184676DOI: 10.1145/2393132.2393192ISBN: 978-1-4503-1637-8OAI: diva2:567257
Academic MindTrek 2012 International Conference on Media of the Future, October 03-05, 2012, Tampere, Finland
Available from: 2012-11-12 Created: 2012-11-12 Last updated: 2014-04-23Bibliographically approved
In thesis
1. Creating Digital Traces of Ideas: Evaluation of Computer Input Methods in Creative and Non-Creative Drawing
Open this publication in new window or tab >>Creating Digital Traces of Ideas: Evaluation of Computer Input Methods in Creative and Non-Creative Drawing
2014 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Ideas are formed in a process of idea generation that includes creation, development, and communication of new ideas. Drawing has been used as a support for ideation for centuries. Today, computerized tools are commonly used for drawing. Such tools form a user interface between the human and the resulting drawing presented on the screen. The interface may come between the user and the drawing in a disruptive way also affecting the ideation process.

Using controlled laboratory studies, this thesis investigates the consequences of drawing with different user interfaces in two types of tasks: creative drawing tasks (based on a standardized test of creativity) and non-creative drawing tasks (i.e. shape-tracing tasks where no new idea is created). The goal was to identify and evaluate the consequences of the several issues originating from the use of different input devices, the functionality of the graphical user interfaces, the formulation of the drawing task, and the user’s previous experience.

The results showed that drawing tasks are oriented toward quality of outcomes and that higher input accuracy led to higher quality of outcomes of both creative and non-creative drawing tasks. This came with a trade-off between the quantity and quality. In ideation, less accurate input devices facilitated significantly more ideas but these were of lower quality. In non-creative tracing, higher speeds caused lower quality of outcomes.

The users subjectively preferred higher accuracy, also when an inaccurate user interface offered an eraser function. However, using the eraser allowed avoiding reinterpretations of ideas and led to ideation strategies characterized by laborious drawing that negatively affected the quality and quantity of the ideas produced. For non-creative drawing, the more difficult the shapes were, the lower the tracing accuracy.

In the thesis a new framework for interaction analysis is introduced that improves the theoretical and practical understanding of computerized drawing tasks and the phenomena resulting from different aspects of the user interface design of computerized drawing tools.

This thesis demonstrates that the inaccuracy of computerized tools cannot only make our drawings less aesthetically pleasing but also negatively affect ideas that are created in the process.

Place, publisher, year, edition, pages
Uppsala: Acta Universitatis Upsaliensis, 2014. 110 p.
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Social Sciences, ISSN 1652-9030 ; 94
evaluation, user performance, input methods, mouse, stylus, touch, tracing, ideation
National Category
Human Computer Interaction
Research subject
Human-Computer Interaction
urn:nbn:se:uu:diva-220882 (URN)978-91-554-8911-3 (ISBN)
Public defence
2014-05-15, Hörsal 2, Ekonomikum, Uppsala, 13:15 (English)
Available from: 2014-04-23 Created: 2014-03-22 Last updated: 2014-09-09Bibliographically approved

Open Access in DiVA

fulltext(273 kB)125 downloads
File information
File name FULLTEXT03.pdfFile size 273 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Other links

Publisher's full textACM DL link

Search in DiVA

By author/editor
Zabramski, Stanislaw
By organisation
Human-Computer Interaction
Human Computer Interaction

Search outside of DiVA

GoogleGoogle Scholar
Total: 125 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 278 hits
ReferencesLink to record
Permanent link

Direct link