1. Principles
Louis Monier April 22, 1988 5:05:56 pm PDT
1. Object style for extension
2. properties for extension
3. code eqv. schematics (link to interpretation)
4. computation model
especially to produce layout
5. interactive user interface
speed of response
talk in terms of source
6. capture high level abstractions
7. orthogonal implementations of orthogonal concepts; wired together
tool integration
layered system