The following exercises are based on the BITS database user views as designed in Your Turn 6-1 in this chapter. In each exercise, represent your answer in DBDL and with a diagram. You may use any of the styles presented in this chapter for the diagram. 

1. Indicate the changes you need to make to the design of the BITS database to support the following situation. A client is not necessarily represented by a single consultant but can be represented by several consultants. 

2. Indicate the changes you need to make to the design of the BITS database to support the following situation. There is no relationship between clients and consultants. When a client places an order (service request), it may be performed by any consultant. On the order, identify both the client placing the order and the consultant responsible for the order.

3. Indicate the changes you need to make to the BITS database design to support the following situation. The region where clients are located is divided into territories. For each territory, store the territory number (a unique identifier) and territory name. Each consultant is assigned to a single territory. Each client also is assigned to a single territory, but the territory must be the same as the territory to which the client’s consultant is assigned. 

4. Indicate the changes you need to make to the BITS database design to support the following situation. The region where clients are located is divided into territories. For each territory, store the territory number (a unique identifier) and territory name. Each consultant is assigned to a single territory. Each client also is assigned to a single territory, which may not be the same as the territory to which the client’s consultant is assigned. 

5. Indicate the changes you need to make to the BITS database design to support the following situation. The client address may or may not be the same as the Bill To address on the client’s invoice.