High specialization index

1.       What is the significance of Lorenz and Kidd’s specialization index? What are the implications of a high specialization index? A low one? A major change in the index as the product evolves?

2.       For each type of coupling, give an example of two components coupled in that way.

Manny, the Royal Service Station manager, is going to expand his services to include an automated car washing system. The customer chooses the type of wash and specifies the type of car.The system computes the fee and displays the amount due on a control panel. The customer can then pay for the car wash. After payment, if the wash is currently busy, the system indicates that the customer must wait. Otherwise, the system indicates that the customer should drive the car into the car wash bay. How would you change the UML class diagram into accommodate this new service?

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