It’s only in the last few years that the Scaled Agile Framework has accommodated Systems Engineering and more specifically, Model Based Systems Engineering methodologies.
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This presentation speaks of a particular way to use Model Based System Engineering (MBSE) in the context of the Scaled Agile Framework (SAFe).

Methodologists have devised many workflows for building Systems Engineering models. Methodologies including Harmony aMBSE, the MBSE Consulting and Training Method, and Object Oriented Systems Engineering Method (OOSEM) do a very good job leading the Systems Engineer from a clean sheet of paper to a completed Systems Engineering model that is ready for hand-off.–But what do you do when the system already exists?

One of the key aspects of describing systems using SysML is identifying and defining interfaces, both internal and external. SysML provides a multitude of ways to describe interface information. At Northrop Grumman, we’ve identified and deployed an approach that allows us to reuse the same interface information on multiple types of diagrams, thus ensuring consistency across the design.