Many Enterprises already have some kind of EA Modelling Tool, that are being actively used for the purpose of Enterprise Architecture, aka creating and maintaining Structural (Capability) and Transformational (Portfolio) Roadmaps. But those Enterprises are in the minority.
Many, many more have either no EA Modelling Tool at all, or they have one but have found that it has not lived up to expectations and sits gathering dust on the shelf or being used as glorified reporting tool and generally providing questionable (if any) returns.
Having witnessed many failures, this book sets out the Methods, Artefacts and Environment required to effectively choose and operate an EA Modelling Tool. It covers the key things that must be done to effectively and efficiently; choose a tool, and then to operate it in a sustainable way.
If the Management decides to choose (or replace) and operate an EA modelling tool effectively, then this book sets out all that is required to do so. Pragmatically.