Difference between revisions of "Usability"

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===[[Mental Models for GIMP]]===
* Provide further information and understanding in the following areas:
Description of the first mental model project in late 2011.
** users ("who?")
** tasks ("what?", "how?")
** context ("where, when, why?")
* Facilitate empathy for users
** How do users tick?
** What are their motivators or pressures?
** What contributes to their satisfaction?
===Proposed Method===
===[[Mental Models for GIMP as a student project]]===
* Mental Models by Indi Young
Description of the second Mental Models project of summer 2012.
** qualitative method
** based on open interviews (no questionnaires)
* Further information on this method is available, see:
** The book (rosenfeld media) [http://rosenfeldmedia.com/books/mental-models/ Mental Models]
** excerpts available for online reading [http://paperc.de/18382-mental-models-9781457102301#!/pages/1 via paperc] (German website, free account required, book in English)
** The author explaining the method in this [http://www.youtube.com/watch?v=M4AsxNg9nNU Video]
** diagrams from the book on [http://www.flickr.com/photos/rosenfeldmedia/sets/72157603511616271/ flickr]
====Course of Actions====
# define audience segments based on [[GIMP UI Redesign#product vision|product vision]]
# set scope of the interviews
# recruit interview partners
# conduct interviews
#* at least 4 interviews per audience segment
#* focus: tasks, behaviours and philosophies of users
# transcribe interviews
# analyze results
#* distillation of tasks, behaviours and philosophies into patterns
#* create graphic of patterns in a mental model
#* oppose mental model vs. [[GIMP UI Redesign#functionality overview|existing functionality]]
# make use
#* gap analysis (planned and existing functionality vs. users' behavior, needs and tasks)
#* adjust user scenarios / audience segments
#* derive stragety for development
#* prioritize features (importance vs. feasability)
* The [[GIMP UI Redesign#product vision|product vision]] is used as a starting point to find the right partners (interviewees) for the mental models interviews.
* Finding the right interview partners is pivotal. Recruiting must be carefully prepared and carried out.
* Recruitment channels can be, but are not limited to the following:
** GIMP developer mailing list
** GIMP users mailing list
** blogs, forums, wikis on GIMP
** blogs, forums, wikis on high-level photo manipulation
====Ideas for Conducting the Method====
* Embed an intern during a Season of Usability on [http://www.openusability.org/ OpenUsability].
**Valuable help can be provided by the intern before, during and after the field phase, e.g.
*** brainstorm ideas for optimal recruiting
*** recruit interview partners
*** conduct interviews / parallel transcription while interviewing
*** transcribe and analyze interviews
*** help build the visualization
* Inquire / brainstorm how the research process and it's results can be made transparent for developers / maintainers.
* Mental Model Diagram
** one diagram per audience segment
** tasks organized in "Mental Spaces" of users
** justified audience segments based on tasks
** gap analysis
** [[GIMP UI Redesign#functionality overview|functionality overview]] will be confronted with users' perspective
* A primer describing the target audience of GIMP can be derived (e.g. 20-40 page pdf about users, tasks, context; for both new and seasoned developers or interaction / usability contributors)
===pros and cons===
*(+) pros
** fundamental research, broad focus, high-level
** detailed analysis of users and their tasks
** research is built on existing findings
** verification of user scenarios / audience segments
** based on tasks and behavior
** adaptable / scalable method
** supports strategic vision and long-term development
** revision and clarification of user scenarios
* (-) cons
** fundamental research, broad focus, high-level
** no immediate improvements
** complex method
** not all existing findings are considered

Latest revision as of 09:02, 16 October 2012

Mental Models for GIMP

Description of the first mental model project in late 2011.

Mental Models for GIMP as a student project

Description of the second Mental Models project of summer 2012.