According to the PMBOKGuide, while the general concept of Variance Analysis (comparing planned performance to actual performance) remains constant, the specific methodologies, tools, and metrics used can differ significantly based on the project environment.
* Application Area: The specific field the project is in (e.g., software development, construction, or pharmaceuticals) dictates what constitutes a " significant " variance. For example, a 5% cost variance in a high-margin research project might be acceptable, while the same variance in a low-margin construction bid could be critical.
* The Standard Used: Different organizations or regulatory bodies may require specific standards for reporting variances (e.g., Earned Value Management standards vs. traditional budget-to-actual accounting).
* The Industry: Industry-specific practices often define the thresholds for variance. In the aerospace industry, weight variance is a critical metric, whereas in the publishing industry, it would be irrelevant.
* Context in Control Processes: Variance analysis is a key tool in Control Scope, Control Schedule, and Control Costs. The project management plan usually defines how these variances will be measured and the " action thresholds " that require the project manager to issue a change request.
Analysis of Other Options:
* A. scenario building, technology forecasting, and forecast by analogy: These are techniques used in forecasting and risk analysis, particularly when looking at future possibilities, rather than the process for analyzing current deviations from a baseline.
* B. working relationships among various stakeholders and team members: While relationships affect how information is communicated, they do not dictate the technical process of how variance analysis is performed.
* D. work to be completed next: Variance analysis is backward-looking (comparing what was planned to be done by now vs. what was actually done). While the results might influence what work is done next, the " work to be completed next " does not define the analysis process itself.