When missing requirements specifications are identified during the design phase, the project manager should meet with the development team to review and assess the requirements. This collaborative approach ensures that all team members are aware of the discrepancies and can contribute to finding a solution. It is also aligned with the PMBOKGuide's emphasis on engaging stakeholders and maintaining open communication throughout the project lifecycle. By assessing the requirements with the team, the project manager can ensure that the project remains aligned with its objectives while addressing the gaps in the specifications.
References:
* Requirements Management Practice Guide | PMI1.
* Effective requirements management - Project Management Institute2.
* PMBOK Guide Seventh Edition FAQs3.