But the class defines the combination of attributes assigned to the valve, and the attributes that apply to every valve do not have to be duplicated in the database. They exist in the class definition, and each valve in the plant will inherit the set of attributes. Compositional Hierarchy Most unique items are a part of, or are made up of, other concepts or components. Cogito places all information in a parent-child information structure. Parent concepts are higher-level concepts and comprise their children concepts.
Children exist within their parents.
Cogito represents this hierarchy in a tree. Inc. All rights reserved. Cogito and its logo are trademarks of Cogito, Inc.