Component

• Self contained unit of program composition
• Documented and well defined interfaces
• Deployed without access to the original developers
• Often distributed and used by third parties
• In common with objects
• Encapsulate state
• Provide access mechanisms through interfaces
• Support modular design
• In addition
• Can be implemented in different languages (although .NET allows this for objects as well)
• Robustly packaged in binary containers
• Can encapsulate multiple objects (e.g. DataGrid)
• Examples
• ActiveX
• JavaBeans

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 Last change: Tuesday, November 25, 2003 1:40 am
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