Used cognitive dimensions [Green89] as heuristic
walkthrough
Fairly strong in viscosity, secondary notations, hard mental
operations can use the diagram for scenario evaluation, weighing of
options
Challenges are in scalability and abstraction
Limited visual variables (look at size, position, shape,
texture/pattern)
13. Future work
Add an algebra for composing and abstracting relationships
Difficult to quantify some NFRs accurately, e.g. usability
Empirical usability testing
Currently working on using Eclipse technologies e.g. GEF/GMF to
visualize conceptual models
14. References
[Green89] - Green, T.R.G.Cognitive dimensions of notations . In
People and Computers V, Sutcliffe, A. & Macaulay, L. (ed.),
Cambridge University Press, 1989, pp. 443-460.
[Bertin83] Bertin, J.Semiology of graphics: diagrams, networks,
maps . University of Wisconsin Press, Madison: 1983.