Think about the model first.
Decide what you want each main entity to be called.
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Note
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If working in a group, this can also be done as a group exercise, so you can all reach a common understanding of the domain together. |
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How does the MNO refer to you as?
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What do you call the service you buy from the MNO?
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What is the document we are talking about called? (Maybe
billis ok, but maybe not!)-
What elements appear in this document?
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What do you call each one of them?
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Where do these entities belong? How are they linked with the other main entities?
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Things that are commonly included in mobile phone bills (include as many of these as you have time for, maybe just start with the top 2):
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Calls,
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SMS,
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MMS,
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Data,
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Monthly subscription fee,
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Tax (various types)
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Tip
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This part is about picking good names for the model. Are you happy with the names of all the objects / data structures and their attributes ? If not, refactor! |
If you are ready to continue, please proceed to Step 2 !