Cost overruns occur when actual project costs exceed the budgeted or planned costs. Effective controls are required to prevent, detect, and correct deviations from the cost baseline.
The most effective way to control cost overruns is through continuous monitoring and comparison of project costs against the approved cost baseline.
Why Option D is Correct?
A formal process to monitor the project status and compare it to the cost baseline ensures that deviations are identified early and corrective actions are taken.
This aligns with the IIA's International Standards for the Professional Practice of Internal Auditing (IPPF), specifically:
Standard 2120 – Risk Management: Internal auditors must evaluate how organizations manage risks, including financial risks related to project cost overruns.
Standard 2500 – Monitoring Progress: Ensures that corrective actions are implemented when issues arise.
IIA Practice Advisory 2130-1: Stresses the importance of monitoring activities to mitigate financial risks.
The Project Management Body of Knowledge (PMBOK) also supports cost monitoring as a key control to prevent overruns.
Why Other Options Are Incorrect?
Option A: Reviewing and approving scope change requests is important, but it does not directly monitor or control cost overruns. Scope creep is a risk, but cost monitoring is a more direct control.
Option B: Having a control committee review overruns after they occur is a reactive measure. Proactive monitoring (option D) is more effective.
Option C: A quality assurance process for scope changes is valuable but does not directly prevent cost overruns. It focuses on project quality rather than financial control.
Effective internal controls for cost management emphasize real-time monitoring and comparison against the cost baseline to prevent and mitigate cost overruns.
IIA Standards 2120, 2500, and 2130-1 support proactive risk management and monitoring as essential best practices for internal auditors.
Final Justification:IIA References:
IPPF Standard 2120 – Risk Management
IPPF Standard 2500 – Monitoring Progress
IIA Practice Advisory 2130-1 – Internal Control and Risk Management
PMBOK – Cost Monitoring and Control
c
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