The business object model will describe the significant objects or entities used and how they are related to each other. Examples of business objects are customer, account, order, item, delivery address and so on. The relationship describes how objects are related, e.g. an order is owned by a customer. In amore classical form the object model may described by an Entity Relationship Diagram (ERD) showing only the static behaviour of an abject.

At a second more detailed level the object is described in terms of the attributes or data elements that are owned by or qualify the object. For example a customer has attributes like statutory name, address, debtor identification. In an object model there may also be methods or operations defined for the object.