A project for a new product is progressing well. The requirements for the project are defined and accepted, the models include acceptance criteria, and the testing team is organized to work through…

Walking through process flow models is useful for identifying missing requirements or logic gaps during analysis, not for resolving test discrepancies once requirements are already accepted.

Creating an issue document is an appropriate follow-up action after diagnosing the problem, not the first analytical step to identify why results do not match.

The requirements traceability matrix links each requirement to its corresponding test cases and acceptance criteria, making it the most direct tool for diagnosing why expected and actual test results diverge. Reviewing the RTM with testers ensures that test cases were written against the correct requirements and that all acceptance criteria are being validated accurately, helping pinpoint whether the gap is in the implementation or the test design.

Tolerance ranges apply to numerical or performance-based acceptance criteria; they do not address discrepancies between expected and actual functional test results.