Tolerance

A numeric range that defines how much a quality measure may deviate from its target and still meet requirements.

Key Points

  • Expressed as measurable limits (for example, +/- values or a range).
  • Sets the acceptable spread around a specified quality target.
  • Established by stakeholders, standards, or contracts to guide acceptance decisions.
  • Different from control limits, which relate to process performance monitoring.

Example

A component must be 100 mm in length with a tolerance of +/- 2 mm. Any part between 98 mm and 102 mm meets the quality requirement; outside this range it is rejected or reworked.

PMP Example Question

Which term describes the predefined numeric range that specifies how far a quality characteristic can vary from its target and still be acceptable?

  1. Tolerance
  2. Control limit
  3. Threshold
  4. Key performance indicator (KPI)

Correct Answer: A — Tolerance

Explanation: Tolerance defines the allowable variation around a quality specification; control limits relate to process control charts, thresholds trigger actions, and KPIs are measures of performance.

Advanced Project Management — Measuring Project Performance

Move beyond guesswork and status reporting. This course helps you measure real progress, spot problems early, and make confident decisions using proven project performance techniques. If you manage complex projects and want clearer visibility and control, this course is built for you.

This is not abstract theory. You’ll work step by step through Earned Value Management (EVM), learning how cost, schedule, and scope come together to show true performance. You’ll build a solid foundation in EVM concepts, understand why formulas work, and learn how performance data actually supports leadership decisions.

You’ll master Work Breakdown Structures (WBS), control accounts, and budget baselines, then apply core EVM metrics like EAC, TCPI, and variance analysis. Through a detailed real-world example, you’ll forecast outcomes, analyze trends, and understand contingencies and management reserves with confidence.

Learn how experienced project managers monitor performance, communicate results clearly, and take corrective action before projects slip. With practical exercises and hands-on analysis, you’ll be ready to apply EVM immediately. Enroll now and start managing performance with clarity and control.



Launch your career!

HK School of Management delivers top-tier training in Project Management, Job Search Strategies, and Career Growth. For the price of a lunch, you’ll gain expert insights into landing your dream PM role, mastering interviews, and negotiating like a pro. With a 30-day money-back guarantee, there’s zero risk—just a clear path to success!

Learn More