Variation Analysis

Expert analysis of project variations including Scope, Time, and Cost to identify causal relationships and quantify impacts.

Projects often experience changes that affect Scope, Time, or Cost. These impacts may arise from design revisions, procurement delays, site conditions, coordination issues, contract changes, or execution constraints.

Stoneboy provides structured variation analysis to help project teams understand the cause-and-effect relationship between project events and their resulting impacts. Our approach supports clearer documentation, improved decision-making, change assessment, and effective resolution of schedule and cost-related issues.

Types of Variation Analysis

  • Scope Variation Analysis (SVA) - Study of variations in Scope
  • Time Variation Analysis (TVA) - Study of variations in Time (delays or acceleration)
  • Cost Variation Analysis (CVA) - Study of variations in Cost

Time Variation Analysis (TVA)

TVA can be performed in three ways:

Retrospective

Sum up the effects of past variations on the project's schedule

Contemporaneous

Report the ongoing variations, and their effects on the project's schedule

Prospective

Predicting the effects of future variations on the project's schedule

Analysis Methodologies

The five most common methodologies used in Variation Analysis:

1Time Impact Analysis (TIA)
2Windows Method (Contemporaneous Period Analysis)
3Collapsed As-Built (CAB)
4Impacted As-Planned (IAP)
5As-Built vs. As-Planned (ABAP)

Our Techniques

Drawing on our deep industry expertise, our team provides superior Variation Analysis:

  • Contract Analysis
  • Entitlement Analysis
  • Causation
  • Assessment of Delay, or Acceleration
  • Quantification of Disruption
  • Quantification of Loss of Productivity
  • Preparation of as-built schedule from project documents & data
  • Development of Re-configured Schedule Baseline
  • Critical Path Analysis, Longest Path Analysis, Concurrent Delay Analysis, Float Analysis
  • Earned Value Analysis, S Curve Analysis
  • PERT / Monte Carlo Simulation
  • Linear Schedules
  • Analysis on changes in updated schedule versus baseline schedule