The client filed a claim because a delivered outcome is not working properly. Investigation revealed the deliverable was outsourced to an external provider and the project manager was not informed. Which primary tool would have helped identify this earlier?

The Communications Management Plan defines how, when, and by whom project information will be administered and distributed. If the project manager was unaware of a critical deliverable being outsourced, it indicates a breakdown in the planned communication channels. A robust communications plan would have stipulated the need to inform the project manager about such significant changes or outsourcing decisions, allowing for proper oversight and quality assurance. The Scope Baseline defines what is included in the project, but not how communication about changes or outsourcing will occur. The Risk Register identifies potential risks, but the lack of communication about outsourcing is a process failure, not necessarily an identified risk in itself. The Stakeholder Register lists project stakeholders, but doesn't dictate the communication flow for project activities or changes.