still most commonly used by them and other military and United States Department of Defense (DoD) agencies, are in the public domain.

The most-widely recognized and used components of the IDEF family are IDEF0, a functional modeling language building on SADT, and IDEF1X, which addresses information models and database design issues.

Overview of IDEF methods

IDEF refers to a family of modeling language, which cover a wide range of uses, from functional modeling to data, simulation,

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