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Now that we talked about requirements prioritization, let's try to see
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how this might work in practice. Imagine that you have collected the
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folowing set of five requirements for an ATM system, but only
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have resources to satisfy two of them. Possibly three. I would like
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for you to look at this list and suitablely prioritize the
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requirements by marking them as mandatory, in this case you're going to put
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an M in the space. Nice to have, in this case you're
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going to put an N. Or superfluous, in this case you're going to put
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an S. This is the set of requirements, the first one
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says that the system shall check the PIN of the ATM
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card before allowing the customer to perform an operation. The second
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says that the system shall perform an additional biometric verification of
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the customer identity for example a check of the customer's finger
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prints before it allows the customer to perform an operation. Then
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we have that the system shall allow customers to withdraw cash
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using an ATM card. The system shall allow customer to deposit
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money using an ATM card. And the system shall allow
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customers to change the pin of their ATM card. So again,
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mark those as mandatory, nice to have, or superfluous considering the
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fact that you can satisfy only two, possibly three of them.
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