Modules pertain to the way in which a system's software is decomposed into manageable units of functionality, which is one of the important forms of system structure.
Modules are related to one another by forms of is-part-of, depends-on, and is-a relations.
A module view provides a blueprint for the source code.
Expect to have at least one module view in your documentation package.
You should not depend on a module name to define the functional duties of the module: use the responsibility property.
Use an interface document to establish a module's role in the system.
Module views are commonly mapped to views of the component and connector viewtype. Module implementation units map to runtime components.