In the first few weeks after a large implementation of a new web-based application, a critical report failed. Further investigation determined that a worker had been using a field that was not supposed to be used. This issue was not identified in testing.

In the first few weeks after a large implementation of a new web-based application, a critical report failed. Further investigation determined that a worker had been using a field that was not supposed to be used. This issue was not identified in testing.
Which technique could have prevented this problem from occurring?
A. Prototyping
B. Use cases
C. Document analysis
D. Diagrams

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