Which process model notation is described in a Federal Information Processing Standard (FIPS)?

The Federal Information Processing Standard (FIPS) specifically relates to the Integrated Definition Method (IDEF) as it was developed as part of a series of standards for supporting the uniform development and documentation of software and systems development. IDEF provides a framework for modeling various aspects of processes, including functional modeling (IDEF0), data modeling (IDEF1X), and simulation modeling (IDEF3). The standard emphasizes clear documentation and aims to ensure that systems are well-defined and easily understood, which is critical in federal projects where clarity and uniformity are essential.

In contrast, BPMN (Business Process Model and Notation) is widely used for business process modeling but does not have the same formal recognition under FIPS. UML (Unified Modeling Language) is primarily designed for software architecture and design, again not falling under the umbrella of FIPS standards. Lean focuses on minimizing waste and improving processes rather than providing a specific notation standard for modeling. Thus, IDEF stands out as the appropriate answer due to its direct alignment with the specifications of FIPS.