Extensibility

No matter how feature-rich your software components are, your users will always want more. A software bus must support some means for developers to extend the functionality of their software components. When I talk about extensibility here, I am really talking about clients (usually other developers) who buy a software component and then want to extend the functionality of those components in some way. If developers who created a software component want to extend the functionality of a component, they face a versioning, not an extensibility, problem. The developers of a software component have the source code for the component, so enhancing the component is easy. Their biggest concern is not breaking existing software that uses ...

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