Business Objects and Business Components, Views, and Screens
A business object represents a major area of the enterprise. An opportunity, account, or contact are examples of a business object. For more information, see Business Object. For an introduction to the relationships that this topic describes, see Hierarchy of Object Types and Relationships.
The following figure describes an example of how a business object groups business components into a logical unit. For example, the Opportunity business object groups together the Opportunity, Contact, Activity, Product, and other business components.

Each business object includes one business component that works as the parent business component. In the figure the parent business component is Opportunity. A link creates a relationship between the parent business component and other child business components, such as Contact and Product. This link allows the business object to display products that Siebel CRM relates to an opportunity or contacts that it relates to an opportunity.