Class Diagram Extends Example. Assess fee would extend withdraw cash and describe the conditional extension point that is. Both the structural and behavioural features.
Extend is used when a use case conditionally adds steps to another first class use case. Associated with it are the customer making the purchase and the payment. You can also define notes using note left of note right of note top of note bottom of keywords.
Then b must be done inside a.
During the formulation of a domain model for example you would seldom move past the conceptual perspectiveanalysis models will typically feature a mix of conceptual and specification perspectivesdesign model development will typically start with. Generalization is another name for inheritance or an is a relationship. In c we can extend a class this is. The class diagram below models a customer order from a retail catalog.