You are an IT consultant, and you are asked to create a new system for a small real estate brokerage firm. You have no experience with O-O approach, and you decide to try it. How will you begin? How will the tasks differ from structured analysis?
1. You are an IT consultant, and you are asked to create a new system for a small real estate brokerage firm. You have no experience with O-O approach, and you decide to try it. How will you begin? How will the tasks differ from structured analysis?
2. Some professionals believe that it is harder for experienced analysts to learn object-modeling techniques, because the analysts are accustomed to thinking about data and processes as separate entities. Others believe that solid analytical skills are easily transferable and do not see a problem in crossing over to the newer approach. What do you think, and why?
3. The concept that the same message gives different meanings to different objects is called polymorphism. Can you think of examples where this behavior may provide unexpected results?
4. You are creating a system for a bowling alley to manage information about its leagues. During the modeling process, you create a state transition diagram for an object called League Bowlers. What are the possible states of a league bowler, and what happens to a bowler who quits the league and rejoins the following season?
5. The UML is a large and complex modeling language. How can an IT professional tell when a UML diagram is correct and not just visually pleasing?
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