CAPM Practice: Demonstrate an understanding of a project management plan schedule

The schedule management plan established a threshold (10% variance) as a trigger for action. With a -12% variance exceeding the threshold, the project manager must initiate a corrective action review as specified in the plan. This involves identifying root causes of the variance and developing options to recover schedule performance.

**Why not B:** Waiting another period to confirm the variance violates the schedule management plan's own threshold trigger. The plan explicitly states that a 10% or greater variance triggers corrective action review. At -12%, the threshold is exceeded and action must be taken immediately, not deferred.

**Why not C:** Simply reporting the variance without taking action is insufficient when the threshold has been breached. The schedule management plan requires a corrective action review, not just communication. Stakeholder reporting alone does not address the underlying schedule problem.

**Why not D:** Updating the schedule baseline to reflect poor performance is a re-baselining action, not a corrective action. Re-baselining without first analyzing the root cause and attempting recovery effectively accepts the delay rather than addressing it. Baseline changes require formal change control approval.