Difference between revisions of "Usability"

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(Course of Actions)
(Proposed Method)
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* Further information on this method is available, see:
 
* Further information on this method is available, see:
 
** The book (rosenfeld media) [http://rosenfeldmedia.com/books/mental-models/ Mental Models]
 
** 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, book in English)
+
** 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]
 
** 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]
 
** diagrams from the book on [http://www.flickr.com/photos/rosenfeldmedia/sets/72157603511616271/ flickr]

Revision as of 13:17, 30 May 2011

Aims

  • provide further information and understanding in the following areas:
    • users ("who?")
    • tasks ("what?", "how?")
    • context ("where, when, why?")

Proposed Method

  • Mental Models by Indi Young
    • qualitative method
    • based on open interviews (no questionnaires)
  • Further information on this method is available, see:
    • The book (rosenfeld media) Mental Models
    • excerpts available for online reading via paperc (German website, free account required, book in English)
    • The author explaining the method in this Video
    • diagrams from the book on flickr

Connection to Exsiting Research

Course of Actions

  1. define audience (already existing: User Scenarios)
  2. recruit participants, set scope and conduct interviews
    • at least 4 interviews per audience segment
    • focus: tasks, behaviours and philosophies of users
    • transcribe interviews
  3. analyze results
    • distillation of tasks, behaviours and philosophies into patterns
    • create graphic of patterns in a mental model
    • oppose mental model vs. planned and existing functionality
  4. 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)

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

Deliverables

  • primer (20-40 page pdf about users, tasks, context)
  • Mental Model Diagram
    • one diagram per audience segment
    • tasks organized in "Mental Spaces" of users
    • justified audience segments based on tasks
    • gap analysis