OpenAccess C++ API Information Model

The Information Model schema diagrams are a graphical representation of the relationships between the major database classes including all managed classes. These are divided into a number of categories with one schema diagram for each category:

Each diagram shows the high-level relationships for classes in its category. These are the primary classes for the page. The primary classes also show all types of low-level data associated with the class. These data are its attributes. Other classes appear because of their relationship to the primary classes for that page. However, all possible relationships are not shown.

The schema diagrams are at the information model level. They do not correspond in complete detail to the API. Neither collections nor arrays are shown as classes. These just result in a one-to-many relationship between source class and the members of the collection or array. Since a collection or an array is a mechanical detail of the API, not the conceptual model, these are omitted.

Relationships are usually two way, and the number of the relationship is specified for each direction. The following figure provides a legend for reading the diagrams.

You can also choose from a list of classes to view a diagram.

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Assignment Classes	CMap and GCellPattern Classes	Parasitic Classes
Block Domain	Collection Classes	Pin Classes
Module Domain	Constraint Classes	Props, Groups, and Extensions
Occurrence Domain	Design Classes	Route and Via Classes
Block Instance Classes	Design Management Classes	Row, and Track Pattern Classes
Block Term and Inst Term Classes	Figure Classes	Scan Chain Classes
Block Net Classes	Layer Classes	Shape Classes
Boundary Classes	Name and Namespace Classes	Tech Classes
		Wafer Classes