4.2. Solutions: Data Flow Diagrams

Before You Reached Here ...

You have attempted one or more of the exercises in Chapter 2.2 Data Flow Diagrams. Even if you haven’t, read through this chapter for the commentary provided. It’ll be worth it.

Naturally, if you have done the exercises, you’ll want to compare your answers with ours. Any glaring errors should be reported immediately. Write a short description on the back of large denomination banknotes and send them to the authors.

Exercise 1: Nelson Buzzcott’s Employment Agency

a) What is the most probable data content of MATCHED APPLICATION?

The best way to answer this question is to ask your users. If they are not available, imagine that you are the process receiving the data flow. Now, what ...

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