Purpose of this tutorial is to give you understanding of how to use generalization in UML, include and extend relationships when making use case diagrams.
Before we start I assume that readers have some idea about how inheritance concept works in object oriented programming. Generalization in UML is basically the same concept of making subclasses whenever possible, if you see there are actors in the system that perform many similar tasks then you can associate them with generalization relationship, I will further clarify it with an example. “Include relationship” is such that if a certain use case must function at the end of another use case then there will be an “include relationship” between these two use cases. If a use case extends the functionality of another use case then they will have “extend relationship” between them. For our demonstration purposes we will use…read more…
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