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Cognitive dimensions are design principles for notations & programming language design, described by researcher Thomas R.G. Green. The dimensions can be used to evaluate the usability of an existing interface, or as heuristics to guide the design of a new one.

List of the cognitive dimensionsEdit

• abstraction gradient
• closeness of mapping
• consistency
• diffuseness/terseness
• error-proneness
• hard operations: hard mental processing
• hidden dependencies
• premature commitment
• progressive evaluation
• role-expressiveness
• secondary notation & escape from formalism
• viscosity: difficulty making changes
• visibility
• side by side ability: making comparisons (juxtaposability)

ReferencesEdit

T. R. G. Green and M. Petre. Usability analysis of visual programming environments: A `cognitive dimensions' framework. Journal of Visual Languages and Computing, 7:131--174, 1996.

External linksEdit

• http://www.usabilityfirst.com/glossary/term_1193.txl

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