Debrief

Aliases

Cog Dimensions; Cognitive Dimensions

Citation Status
Verified
Cited in Generated Atlas
3
Design Consequence

Evaluate a notation along trade-off dimensions (viscosity, visibility, premature commitment).

Full Citation

Green, T. R. G. & Petre, M. (1996). Usability analysis of visual programming environments: a 'cognitive dimensions' framework. JVLC, 7(2), 131–174.

Source Class
Canonical
Themes
Cognitive Load & Dimensions
The Snag

Low visibility, high viscosity, or early commitment can make a representation expensive to inspect and revise.

The Move

Choose schemas and prompt formats with high visibility, clear role-expressiveness, progressive evaluation, and low viscosity.

The Cure

Evaluate any notation against the dimensions before standardizing on it.

The Read

Trade-off dimensions explain why visible, role-expressive, and revisable representations reduce hidden reading and change costs.