An agile team building an enterprise workflow system finds the system architect frequently interrupted by user phone calls that disrupt their work. What should the project manager do?

The correct answer is to include user training materials as part of the project deliverables. This proactive approach addresses the root cause of the interruptions by empowering users to find answers independently, thereby reducing their reliance on the architect. It aligns with agile principles of self-organizing teams and sustainable pace, allowing the architect to focus on core development tasks. Asking users to email instead of calling only shifts the communication medium, not the interruption itself, and still requires the architect's time. Having the architect prepare a self-help manual is a good idea, but including it as a project deliverable ensures it's a planned and resourced activity, not an additional burden. Updating the backlog and reassigning stories might temporarily reduce the architect's workload but doesn't solve the underlying issue of users needing support.