Decomposing a Framework Node

You can decompose one or more nodes in the framework diagram to analyze them in more detail. The decomposed node has its own sub-diagram, which models the links between its sub-nodes. Sub-nodes can, themselves, be decomposed into further sub-nodes, and so on until you obtain a sufficient level of detail.

You can decompose a node in a framework diagram in any of the following ways:

Press CTRL and double-click the node symbol (this will open the sub-node directly)
Open the property sheet of the node and, on the General tab, select the Composite check box.

Decomposed node symbols in a framework diagram carry a plus-sign symbol to indicate that they contain further detail

The sub-diagram of the decomposed node is empty at first. You have to create the appropriate number of nodes and links between them to show their connections (see Creating a Framework Diagram).