Five system views: logical view

, process view, implementation view, deployment view and use case view.
2.10 Components and Software Reuse A component (component) is a relatively functionally independent unit of software with reusable value. In the object-oriented approach, a component consists of a set of objects containing a collection of collaborative classes that work together to provide a system functionality.1) Software reuseReusability is the extent to which a system and/or its components can be reused in other systems.