Enterprise Architecture Modeling Glossary

On this page, we have listed the terms from the Dragon1 open EA Method you will encounter throughout this guide:


A total concept for a structure, consisting of operative, decorative and constructive concepts.

Enterprise Architecture

A total concept for an enterprise structure, consisting of operative, decorative and constructive business and IT concepts.


An idea, approach, way of doing things, abstraction of an implementation.


A logical entity as part of a concept and principle of a concept.


The enforced way an entity works, producing results.

Entity Class

A logical data item type that can be stored in a folder. Humans, Products, Services, Processes and Applications, etc. All are entityclasses. You can store many types and instances of entities in a folder.


A logical data item that can be stored in a folder. A customer (human), insurance (a product), serving coffee (a service), sending invoices (a process) and CRM (application) are examples of entities. But also a model, view and visualization are entities, but a specific type of entity. Every entity always is an instance of an Entity Class.


A set of related entities. For example, the enterprise model of a hospital consists of entities like humans, products, services, processes and applications.

Meta Model

A class of models. For example, hospital enterprise models.


A set of entities classes, entity types and entities attribute values that are of interest to a certain stakeholder.


A filtered model based on a viewpoint (a set of entities).


A graphical representation of a view of a model. Diagrams and presentations are types of visualizations.


The logical connection between entities in a model.

Complete overview of terms

For a complete overview of terms, please check the Dragon1 Glossary page.