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3SL Reference

Internal Block Diagram (ibd)

The Internal Block Diagram (ibd) is used to describe the internal structure of a Block's compartment parts (i.e. a subordinate block of the enclosing Block) and how its parts are interconnected, and what flows across the connections. The specified flow items represent high-level internal interfaces. Interactions with external Blocks are also modelled to specify the required external interfaces.

The following ibd has all the possible symbols that can be used:

Example ibd

A real world example ibd is shown below:

Real world example ibd