eXpress Design Structure Reference
The eXpress Design is composed of many lists of entities within the design. Each list may have items which, in turn, contain lists of other entities. For example, a Design contains a list of objects in what is called an Object Collection. This Object Collection is used to obtain any particular Object by name or by index. Certain types of Objects, however, also contain lists of ports within a Port Collection.
In addition to this nested storage of information, eXpress also maintains parent pointers so that various entities can search up through the hierarchy as well. For example, an Object's parent is the design, and a Port's parent is an Object.
Because the number of entities and relationships are large, we have broken the problem into logical areas. To see the relationship for a given area, select from the following snapshots:
