Video rental system
(New page: Design a system that allows DVDs to be rented to customers. How do we know if the design is any good? What principles guide us in evaluating it?) |
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| + | '''Design a system that allows DVDs to be rented to customers.''' | ||
| + | == Headline text == | ||
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| + | Design a video rental system. Sounds easy enough doesn't it? | ||
How do we know if the design is any good? What principles guide us in evaluating it? | How do we know if the design is any good? What principles guide us in evaluating it? | ||
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| + | It would seem that a consensus between designers would indicate a good design (or at least an informed agreement to disagree). | ||
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| + | Here is the Video Rental System design we came up with after a short period of group discussion. | ||
| + | [image:VideoRental1.jpg] | ||
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| + | I short order this class diagram was pulled apart for numerous reasons as will be discussed below. | ||
| + | Feel free to find better ways of doing this and contribute to the discussion. | ||
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| + | There are some things we did get right. Using the [[Many to many association idiom]] to create a relationship between Customer and Title for the rental transaction is good. | ||
Revision as of 03:49, 17 July 2008
Design a system that allows DVDs to be rented to customers.
Headline text
Design a video rental system. Sounds easy enough doesn't it? How do we know if the design is any good? What principles guide us in evaluating it?
It would seem that a consensus between designers would indicate a good design (or at least an informed agreement to disagree).
Here is the Video Rental System design we came up with after a short period of group discussion. [image:VideoRental1.jpg]
I short order this class diagram was pulled apart for numerous reasons as will be discussed below. Feel free to find better ways of doing this and contribute to the discussion.
There are some things we did get right. Using the Many to many association idiom to create a relationship between Customer and Title for the rental transaction is good.
