During an ongoing project, the project manager notices that the software engineers have a different interpretation of success criteria for a key feature compared to the team responsible for testing. This discrepancy has led to delays and a tense atmosphere. What is the most effective first step for the project manager to resolve this discrepancy?
Redistribute the project's requirement specifications, assuming the teams have not properly reviewed them.
Convene a session with core members from the software engineering and testing teams to clarify the interpretations of the success criteria.
Implement a role exchange initiative where the software engineers and testers swap tasks temporarily to understand the challenges of the other group.
Escalate the issue to senior management for a definitive interpretation of the feature's success criteria.