Design Pattern Intro

• Douglas C. Schmidt's info on patterns and frameworks.


• Tutorials by same.


• Hillside Group

From Schmidt's framework overview. Frameworks provide developers modularity, reusability, extensibility, and inversion of control. Early GUIs MacApp and Interviews. MFC now a standard. Object Request Broker (ORB) facilitate comm btwn local and remote object

Types

• System, like OS and comm networks.
• Middle-ware, like ORB, msg-oriented middle-ware, transactional databases.
• Enterprise, broad app domains like telecomm, avionics, manufacturing, financial engineering.

Implementation types

• Whitebox. Extend FW objects.
• Blackbox. Use FW defined interfaces.

C0mpare framworks with

• Patterns. Frameworks more concrete.
• Class libraries. CL more generic & passive. FW more complete solution.
• Components. Objects that can plug together into app. Seem to me halfway betwn CL and FW.