A (conceptual) model is a representation of a system or a domain, or of a viewpoint on a system or a domain.

Often a model will be part of an Enterprise Architecture, and its model elements will be included in a Architecture repository. In that case the model is part of an Architecture description.

In an Enterprise Architecture model, each model element will typically occur in two manners:

Check the Conceptual model (Wikipedia) for types and scopes of models and modelling techniques.

The backlinks below usually do not include the child and sibling items, nor the pages in the breadcrumbs.