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What Is Schedule Variance in Project Management?

Delivering a project on time is just as crucial as staying within budget. That’s why schedule variance in project management plays such a vital role in tracking performance.

In this summary, you’ll learn how schedule variance helps identify whether a project is ahead or behind schedule—and why it matters for decision-makers.

What Is Schedule Variance?

Schedule variance (SV) is a project management metric that measures the difference between planned progress and actual progress. It helps you evaluate if a project is on track, behind, or ahead of its timeline.

Formula:
SV = Earned Value (EV) – Planned Value (PV)

A positive SV means you’re ahead of schedule.
A negative SV signals delays.

Why It Matters

  • Monitoring schedule variance allows project managers to:
  • Detect timeline slippage early
  • Take corrective actions promptly
  • Allocate resources effectively
  • Improve future project estimates

Where It's Used

  • Agile sprint tracking
  • Waterfall project milestones
  • Construction timelines
  • Software development lifecycles

Final Thoughts

Understanding schedule variance in project management helps teams stay agile, responsive, and informed. It’s more than just a metric—it's a guidepost for staying aligned with goals and deadlines.

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