Objects and classes
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Class is a template object construction
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Packaging is an important concept related to the object, from a formal point of view, but the package is a combination of data and behavior in one package, and user object hides the implementation of the data. Examples of data objects called domain, the operation data is called a method.
Relations between classes
Between the most common relationship has
- Dependent ( "uses-a")
- Polymerization ( "hsa-a")
- Inheritance ( "is-a")
Dependence is said to have dependencies between two classes, a class containing the polymerization is another class.
UML relationship table corresponding to arrow
