IDEF’s approach to Object-Oriented Design.

IDEF4 is a method for approaching Object-Oriented Design that was introduced alongside the other IDEF methods (IDEF). It’s not widely in use in its base form, but serves as a predecessor for things like UML. It contains many diagrams and datasheets.

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Notably many of the diagrams logically contained under ‘Class Submodel’ are very similar to Class Diagrams. It also includes things like these:

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Interestingly, Entity-Relationship Diagrams in IDEF4 use a Crow’s Notation, rather than the notation specified in IDEF1X.

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I don’t intend to ever learn much more about this method. I’ve scrolled through the IDEF4 spec. Good ‘nuff.


Source

Source

IDEF4 - Object-Oriented Design Method - IDEF