Overview:
This artifact describes the realization of required system functionality in terms of components and serves as an abstraction of the source code.

Purpose:

Describe the elements of the system so they can be examined and understood in ways not possible by reading the source code.

Main Description:

This product can describe multiple static and dynamic views of the system for examination. Although various views may focus on divergent, seemingly independent issues of how the system will be put together and work, they should fit together without contradiction.

It describes the elements that will make up the implemented system. It communicates abstractions of particular portions of the implementation and can describe an encapsulated subsystem, a high-level analysis of the system, a view of the system in only one context, or other perspectives that explain a solution to a specific problem that needs to be communicated.