Simplifying Use Cases - Extend - Extension Points
8 important questions on Simplifying Use Cases - Extend - Extension Points
There exists additional notation that helps in identifying when and where to insert the extension.
What is this additional notation?
We use the standard constraint notation, a note symbol, with the label “condition.”
What are extension points?
These are locations where the extension can be inserted if the condition is true.
UML doesn’t have a standard way of identifying these list of locations.
But what is commonly of naming these list of locations?
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What does UML says about the use of extension points?
Both the extension points and condition are optional.
You can use neither, either, or both.
What does a condition mean in a use case diagram?
What is an alternative format for the Use Case and extension points?
When is it useful to use the Classifier Rectangle?
What does the oval in the upper right mean?
The compartment name is “extension points.”
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