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Visual Models for Software Requirements by Joy Beatty and Anthony Chen

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Chapter 21. Data Dictionary

When I shop online and am finishing my order, there are several fields I have to fill in before I can submit my order. For example, I usually have to enter my phone number and shipping address, select a type of shipping, and provide a billing address and payment information. The shipping address and billing address are similar in that they both require me to give a street address, city, state, and postal code. Some online stores ask for more information, such as the country I’m in, which would probably change the address fields. Because the city of Austin, Texas, exists in two counties, sometimes the store asks what county I live in because sales taxes can vary by county. As I fill in the values for the order fields, ...

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