Using the Graphic Editors : Working with Charts and Diagrams : Module Charts : Accessing a Module Chart : General Module Icons

General Module Icons

Modules are the primary graphic element used in module charts. Modules are used to represent the structure of the system. There are two types of modules: internal (solid rectangle) and external (dashed rectangle). The functionality of a module is shown by an activity chart.

 
Create Internal Module - creates an internal module.
Name Existing Module - names an existing module.
Create Environment Module - creates an environmental module, which is a module outside the scope of the topmost module in a particular module chart.
Because module charts are hierarchical, an environmental module is usually resolved to a box in a chart higher in the chart hierarchy. However, an environmental module can be resolved to a box that is an internal module at a higher level. In this case it remains simply an environmental module when referenced in the lower chart.