Every project (.prj) contains at least one diagram, and any number of model or file documents. The project can also contain one or more framework diagrams, a framework matrix, and one or more dependency matrices.
An empty project.
A project based on a template (see Project Templates). Click the Change Template Directory tool to search for templates in another location.
The project opens. You can add models and other documents to your project (see Building a Project and Completing Framework Diagrams and Matrices).