Share This Author
Usability Analysis of Visual Programming Environments: A 'Cognitive Dimensions' Framework
This paper applies the cognitive dimensions framework to two commercially-available dataflow languages and concludes that it is effective and insightful; other HCI-based evaluation techniques focus on different aspects and would make good complements.
Cognitive dimensions of notations
- T. Green
- Computer Science
- 1 February 1990
The dimensions concept can be justified by pointing to areas where progress is slow, as I have done above; or by criticising existing systems, or by raising design issues in relation to present growth areas.
Cognitive Dimensions of Notations: Design Tools for Cognitive Technology
Cognitive Dimensions is introduced, the current activity is summarized, especially the results of a one-day workshop devoted to Cognitive Dimensions in December 2000, and the ways in which it applies to the field of Cognitive Technology are reviewed.
Group and Individual Time Management Tools: What You Get is Not What You Need
This interview study reports how users exploit paper, personal digital assistants and a group scheduling system for their time management, finding many shortcomings of different technologies, but studying the ensemble rather than individual tools points towards a different conclusion.
Task-Action Grammars: A Model of the Mental Representation of Task Languages
The findings reported in this paper indicate that graphical presentations are more useful when evaluating information in order to determine promising directions in the search for an optimal solution bit when the task requires the determination of exact data values for computational purposes, graphical reports are less useful than tabular ones.
A Cognitive Dimensions questionnaire optimised for users
This questionnaire has been completed by an extremely diverse range of users, showing that a generalised CDs questionnaire is indeed a suitable tool for user evaluation.
The necessity of syntax markers: Two experiments with artificial languages
- T. Green
- Linguistics, Computer Science
- 1 August 1979
Cognitive Dimensions of Information Artefacts: a tutorial
This tutorial discusses the construction of types and availability of abstraction mechanisms, and some examples show the importance of role-expressiveness, which indicates the purpose of a component is readily inferred.
Comprehension and Recall of Miniature Programs
When Visual Programs are Harder to Read than Textual Programs
Comparisons between the comprehensibility of textual and visual programs are reported, drawing on the methods developed by Green (1977) for comparing detailed comprehensible of conditional structures.