Design For Reuse

Components:

Interface Object (ADT)
Implementation
Unix Man page
Design Rationale
Specification
Test Plan
Test Cases/Runs
Subsystems
Models:
- Architectures
- View of Computation
- Computation Rules

Assumption: Reusable Components can have a bigger investment.

Questions:

Is there a relation between size and reusability?
Do different architectures require different reuse strategies?
Why have different architectures been reused?
What are the Properties of Interfaces/Objects that maximize reuse?

Problem: Inadequate expression of languages and composition techniques.