Design

Design

1. Software Systems

   • Relationship
     • System
       • Boundary
         • Object
           • Export
             • Interfaces
         • Inside
           • implemented
             • System Designer
       • Subjective
         • System Designer
     • Environment
       • Dependency

2. Tradeoff

   • Quality
   • Cost
   • Functionality

3. Quality

   • High
     • Benefits
       • reliability
       • delivery
       • maintenance
       • changeability

4. Process

   • Analyse
     • propose
       • Predict
         • impement
           • evaluate
             • refactor

5. Strategies

   • refinement
     • top
   • Composition
     • bottom

6. Principles

   • separation
     • concerns
       • concentrate
         • isolation
       • identification
         • re-usable
       • specialist
       • flexibility
       • cost
         • minimises
           • mainenance
           • Design
             • Bad
   • abstraction
     • suffcient
       • committing
         • early
         • Concrete
           • implementation
             • Change
             • Multiple
   • re-use
     • in
     • for
     • generalize
       • domain
         • context
     • designs
     • frameworks
     • libraries
   • Testing
     • expose
       • information
     • same
       • access
         • harnesses
         • clients
   • cohesion
     • Increase
   • coupling
     • reduce

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