NGOMSL: Difference between revisions
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imported>Konstantin Tchernov (created, large chunk from: http://pilot.citizendium.org/wiki?title=GOMS&oldid=100005605) |
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==Overview== | ==Overview== | ||
Natural GOMS Language technique was developed by David Kieras in 1988.<ref>{{cite book|last=Kieras|first=David|chapter=Towards a practical GOMS model methodology for user interface design|title=Handbook of Human-Computer Interaction|editor=Martin Helander|publisher=Elsevier Science Publishers|year=1988|pages=p135-157|location=[[Amsterdam]], The [[Netherlands]]|id=ISBN 0-444-88673-7}}</ref> The motivation was to make GOMS/CCT ([[cognitive complexity theory]]) simple to use, and still keep the power and flexibility of standard GOMS. This was necessary because GOMS did not have very well defined semantics. This lack of definition meant that two equally competent evaluators could do evaluations on the same system and come up with very different results. Kieras's result was the development of high level (natural language) syntax for GOMS representation with directions for doing a GOMS evaluation. The recipe is referred to as a "top down, breadth first" expansion. The user's high level goals are unfolded until only operators remain. Generally operators are considered to be keystroke level operations but this is not a rigid requirement. | Natural GOMS Language technique was developed by David Kieras in 1988.<ref>{{cite book|last=Kieras|first=David|chapter=Towards a practical GOMS model methodology for user interface design|title=Handbook of Human-Computer Interaction|editor=Martin Helander|publisher=Elsevier Science Publishers|year=1988|pages=p135-157|location=[[Amsterdam]], The [[Netherlands]]|id=ISBN 0-444-88673-7}}</ref> The motivation was to make GOMS/CCT ([[cognitive complexity theory]]) simple to use, and still keep the power and flexibility of standard GOMS. This was necessary because GOMS did not have very well defined semantics. This lack of definition meant that two equally competent evaluators could do evaluations on the same system and come up with very different results. Kieras's result was the development of high level (natural language) syntax for GOMS representation with directions for doing a GOMS evaluation. The recipe is referred to as a "top down, breadth first" expansion. The user's high level goals are unfolded until only operators remain. Generally operators are considered to be keystroke level operations but this is not a rigid requirement. | ||
Since NGOMSL is based on [[cognitive complexity theory|CCT]] it has certain properties that make it unique. NGOMSL inherits the ability to not only give estimations for execution times but it can also estimate the time taken to learn how to use the system. It also, however, shares one of the major disadvantages the all of the previous methods. NGOMSL models user interaction as a serial operation. One operation occupies the user completely, there is no multitasking. This makes NGOMSL inappropriate for analyzing tasks where the users are under time pressure, highly practiced and, in reality, do act in a parallel fashion. | Since NGOMSL is based on [[cognitive complexity theory|CCT]] it has certain properties that make it unique. NGOMSL inherits the ability to not only give estimations for execution times but it can also estimate the time taken to learn how to use the system. It also, however, shares one of the major disadvantages the all of the previous methods. NGOMSL models user interaction as a serial operation. One operation occupies the user completely, there is no multitasking. This makes NGOMSL inappropriate for analyzing tasks where the users are under time pressure, highly practiced and, in reality, do act in a parallel fashion. | ||
==References== | ==References== | ||
*This | *This text incorporates text of [http://www.cc.gatech.edu/classes/cs6751_97_fall/projects/closet2000+/FinalEssays/goms.html Dr. G. Abowd: GOMS Analysis Techniques - Final Essay], which has been released into [[GFDL]] by its author (see [http://en.wikipedia.org/w/index.php?title=Talk:GOMS&oldid=19999716]). Original references follow. | ||
:*Dix, A., Finlay, J., Abowd, G., Beale, R., [http://www.hiraeth.com/books/hci/ Human Computer Interaction] , Prentice Hall, 1993 | :*Dix, A., Finlay, J., Abowd, G., Beale, R., [http://www.hiraeth.com/books/hci/ Human Computer Interaction] , Prentice Hall, 1993 | ||
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*Judith Reitman Olson, Gary M. Olson: ''The Growth of Cognitive Modeling in Human-Computer Interaction Since GOMS'', in: R. M. Baecker, J. Grudin, W. A. S. Buxton, S. Greenberg: ''Readings in Human-Computer Interaction: Towards the Year 2000.'' 1995, San Francisco, CA: Morgan Kaufmann. | *Judith Reitman Olson, Gary M. Olson: ''The Growth of Cognitive Modeling in Human-Computer Interaction Since GOMS'', in: R. M. Baecker, J. Grudin, W. A. S. Buxton, S. Greenberg: ''Readings in Human-Computer Interaction: Towards the Year 2000.'' 1995, San Francisco, CA: Morgan Kaufmann. | ||
<references/> | <references/> | ||
Revision as of 07:34, 22 October 2007
NGOMSL stands for Natural GOMS Language, it is a variation of the GOMS technique in human computer interaction.
Overview
Natural GOMS Language technique was developed by David Kieras in 1988.[1] The motivation was to make GOMS/CCT (cognitive complexity theory) simple to use, and still keep the power and flexibility of standard GOMS. This was necessary because GOMS did not have very well defined semantics. This lack of definition meant that two equally competent evaluators could do evaluations on the same system and come up with very different results. Kieras's result was the development of high level (natural language) syntax for GOMS representation with directions for doing a GOMS evaluation. The recipe is referred to as a "top down, breadth first" expansion. The user's high level goals are unfolded until only operators remain. Generally operators are considered to be keystroke level operations but this is not a rigid requirement.
Since NGOMSL is based on CCT it has certain properties that make it unique. NGOMSL inherits the ability to not only give estimations for execution times but it can also estimate the time taken to learn how to use the system. It also, however, shares one of the major disadvantages the all of the previous methods. NGOMSL models user interaction as a serial operation. One operation occupies the user completely, there is no multitasking. This makes NGOMSL inappropriate for analyzing tasks where the users are under time pressure, highly practiced and, in reality, do act in a parallel fashion.
References
- This text incorporates text of Dr. G. Abowd: GOMS Analysis Techniques - Final Essay, which has been released into GFDL by its author (see [1]). Original references follow.
- Dix, A., Finlay, J., Abowd, G., Beale, R., Human Computer Interaction , Prentice Hall, 1993
- Lecture Notes, Abowd, G., CS6751, Georgia Institute of Technology, Nov-1997
- Kieras, D., John, B., The GOMS Family of Analysis Techniques: Tools for Design and Evaluation, CMU-HCII-94-106, 1994
- Kieras, D., John, B., Using GOMS for User Interface Design and Evaluation: Which Technique?, June-1996
- Kieras, D., John, B., The GOMS Family of User Interface Analysis Techniques: Comparison and Contrast
- Lecture Notes, CS5724, Virginia Tech, Fall 1996
- Judith Reitman Olson, Gary M. Olson: The Growth of Cognitive Modeling in Human-Computer Interaction Since GOMS, in: R. M. Baecker, J. Grudin, W. A. S. Buxton, S. Greenberg: Readings in Human-Computer Interaction: Towards the Year 2000. 1995, San Francisco, CA: Morgan Kaufmann.
- ↑ Kieras, David (1988). “Towards a practical GOMS model methodology for user interface design”, Martin Helander: Handbook of Human-Computer Interaction. Amsterdam, The Netherlands: Elsevier Science Publishers, p135-157. ISBN 0-444-88673-7.