Beginners Guide to Model-Based Systems Engineering

12/18/2018

Key Semantics of EFFBDs

• Functions

• Nodes on flow

lines (branches) • Number and name standard • Allocation optional

• Constructs • Sequence • Select

• Multiple-exit • Parallel • Loop • Iterate • Replicate

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Key Semantics of EFFBDs, cont.

• Items

• Typically name only • Drawn as rounded rectangle • Shows only local relationships • Input relationship represented as single arrowhead • Triggering relationship represented as double arrowhead • Green fill means item is a trigger somewhere in the model • Grey fill means item is only a data store throughout the model

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