We start by agreeing a Statement of Business Objectives to establish the scope of the Enterprise Data Model.
Once we have agreed the Statement of Business Objectives we can create a draft Top-Level Model with associated Subject Areas, each of which is shown in its own Model.
This is an example of a Statement of Business Objectives for an Investment Bank :-
"Our Business objectives are to offer a range of Services to Clients, which can be either organizations or
High-Net-Worth Individuals.
These Services will involve completing Deals for our Clients in which our Staff will participate with the purpose of achieving acceptable returns on investment.
Brokers may participate in these Deals, which will all be completed by Settlements.
Deals may involve multiple Currencies and incur subsequent Transactions, such as adjustments.
The Enterprise Data Model will establish the data available for a Data Warehouse to meet Business Intelligence requirements."
We have also created Data Models for these Subject Areas :-