Datasheet

18 ■ Optimize Quality for Business Outcomes
The following functions are needed:
 Log in
 Log out
 Register
 Search flight
 Book flight
Requirements Verification
The prerequisite for the Requirements Verification phase is
broken down into logical business functions (Figure 6).
Figure 6: The business process is broken down into
business functions
The Requirements Verification phase documents the accep-
tance criteria for each requirement of each separate business
function.
Suppose one requirement for the business function LOGIN is:
“The user has to enter a username and a password. By pressing
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