**SADT is a predecessor and superset of IDEF0** IDEF0 was derived from another approach called “Structured Analysis & Design Technique” (SADT). SADT is a predecessor to and a superset of [[IDEF0]]. It was used by the Air Force in the 1970’s. SADT contains all of IDEF0, plus: - Data modeling - which ties into the functions - Some syntax features like 2-way arrows - Quantification Labels (”Q-Labels”) - Binds quantifiable values to ICOM lines - Activation Rules - Allow for simulation of models SADT turns IDEF0 into a form of lightweight Pseudo [[SysML]]. However SADT (like IDEF0, unfortunately) seems to be almost completely abandoned. **** # More ## Source - [[The Practical Guide to Business Process Reengineer]] ## Related - [[IDEF0]]