Scope

The formal approach to systems modeling[1] offers a sound theoretical basis for modelling the universe of discourse. In the approach the combined use of object and transition system specification techniques has been well established.

UML

Today, UML domain modeling techniques [2]offer a standard for modeling the entities that occur in the universe of discourse associated with any service or information system. The possible states of a (work) system and (relevant parts of) its environment are represented by a(n infinite) set of object-diagrams (or token models), in which each object is instance of one or more classes. Any information system will include representations of those entities and of relevant events involving them.

Enterprise Architecture Models

There exist several tools to capture the models that help people to plan and implement change in their livelihoods. The (EA)2 approach [3] illustrates a best practice based on the Sparx Enterprise Architect tool.

The content-intensivity of the enterprise architecture practice would imply prohibitive costs if stakeholders would proceed with — singly and severally — implementing such an approach.

Doing enterprise architecture in a multi-level perspective implies enormous content-reuse opportunities[4]. The Ens Dictionary is one component in the service architecture that will enable us to collaboratively achieve those reuse benefits.