f1. Define a possible scope for the following systems. First, list a wide range of things that the system could do. Then narrow down the scope. To do this, select a minimal set of the most important features that you would implement in the first release of the system.
(a) A police information system (b) A system for a real estate agency. (c) A system for a public library. (d) A system for a car rental agency.
T2. Identify all the classes you can think of that might be part of the following systems, and choose good names for them.
(a) A restaurant reservation system. (b) A video rental store. (c) A system for a public library. (d) A video editing tool.
3. Apply the Abstraction-Occurrence pattern in the following situations. For each situation, show the two linked classes, the association between the classes, and the attributes in each class.
(a) The issues of a periodical. (b) Models of electronic appliances and the individual appliances.