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The Fundamental Structural Building Blocks
Blocks are the fundamental and discrete modular units of system description. A Block defines a collection of features that are used to define an aspect of a system or a system itself. The features are of two fundamental types: structural (what a Block consists of) and behavioral (what it does) features. A Block's relationships with other Blocks (including itself) and with elements of other types, help to describe the structure of a system, subsystem or component.
System modelers use Block Definition Diagrams (BDDs) to define the structure of Blocks, and Internal Block Diagrams (IBDs) to describe their usage.
These diagrams can be created from the 'New Diagram' dialog, accessible from the Browser window toolbar.
