What is UML? - Modeling - Principles of Modeling
4 important questions on What is UML? - Modeling - Principles of Modeling
An importance principle of modeling is to.....
A 1:1 map of a town would not be useful, not only would it be too complicated, but also it would be too difficult to fold. It is better to have several maps, each with its own intent, than putting it all together into one.
Imaging one map of the roads, one map for the utilities, one map for the political subdivisions, one map for the school districts, i.e., one map for one purpose
UML supplies several techniques that support specification of the whole-part structures within the model. Such as..?
What is an physicial whole-part relationship?
A engine can only be part of one car at a time. AGGREGATION is a weaker form, where the part can be part of many wholes.
For example, a student could be part of more than one school
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Wht s Substituion?
All the features of the generalized class are also available on the specialized class, so if you want the features of the general, you will also find them on the specialized. This if often called SUBSTITUTION.
Therefore, any specific book or movie is also an instance of Borrowable Material.
The question on the page originate from the summary of the following study material:
- A unique study and practice tool
- Never study anything twice again
- Get the grades you hope for
- 100% sure, 100% understanding
