Classifying Patterns

• Idioms

  • Low-level Patterns that depend on specific implementation technologies (Lazy optimization in Smalltalk)

• Design Patterns

  • Problems, forces and solution are language independent so they stand as general design practices for common classes of software problems (Singleton)

• Framework Patterns

  • A partially completed body of code designed to be extended built on may system level patterns that tie together system parts and mechanisms (Client-Server)

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