Original GOMS (CMN-GOMS)
Card, Moran & Newell (1983)
Engineering model of user interaction
- task analysis (“how to” knowledge)
- Goals - user’s intentions (tasks)
- e.g. delete a file, edit text, assist a customer
- Operators - actions to complete task
- cognitive, perceptual & motor (MHP)
- low-level (e.g. move the mouse to menu)