Introduction to data modeling with System Architect
System Architect supports database design with logical data models and physical data models. An encyclopedia can contain multiple project data models, each of which can have a logical model diagram, multiple logical subject area diagrams, and multiple physical diagrams.
A System Architect encyclopedia is based on a standard data dictionary. Some of the objects in that dictionary can be used for all of your modeling activities, thus ensuring that the definitions used throughout your modeling activities are consistent.
System Architect provides the capability to build multiple project data models in a single project encyclopedia. Each Project Data Model can consist of a Model diagram and one or more Subject Area diagrams. Models and subject area diagrams are always either components of an Entity Relation Diagram (ERD) or IDEF1X diagrams. For more information, see The project data model.