A clear, practical guide to mastering Schedule Quantitative Risk Analysis (SQRA) and building a reliable P50 risk‑based baseline schedule.

Whether you call it Schedule Quantitative Risk Analysis (SQRA) or Quantitative Schedule Risk Analysis (QSRA), the goal is the same: understanding the probability of finishing a project on time and on budget. This book gives you a clear, practical, and accessible path to doing it right.

Project managers, planners, schedulers, and emerging leaders often struggle with the quantitative side of schedule risk. Many rely too heavily on tools without understanding the underlying processes, benchmarks, and reasoning that make SQRA credible. This book closes that gap—quickly, clearly, and with real-world practicality.

Why This Book Matters
A risk tool is only as good as the practitioner using it. Misapplied methods, incomplete understanding, and “button‑pushing” approaches lead to misleading results and poor decisions. This book brings you back to fundamentals—showing you what to do, why it matters, and how to do it correctly.

You will learn how to build a defensible, high‑quality P50 risk‑based baseline schedule using traditional three‑point estimating techniques, supported by the OPRA tool and proven SQRA (QSRA) processes.

What You Will Learn
Through structured lessons and full‑color visuals, you will gain the confidence to perform SQRA (QSRA) with clarity and accuracy. Topics include:

Understanding the foundations of schedule risk and uncertainty
Applying the traditional three‑point estimating method correctly
Identifying, assessing, and quantifying schedule risk events
Using OPRA effectively as a tool—not a crutch
Building a P50 risk‑based baseline schedule that stands up to scrutiny
Avoiding common mistakes and misconceptions in quantitative analysis
Interpreting results with professional judgment and technical integrity

Each lesson is designed to be digestible, practical, and immediately applicable to real project environments.

Who This Book Is For
This Colored Edition is ideal for:

New and upcoming project managers
Planners and schedulers transitioning into risk-based work
Project controls professionals seeking deeper SQRA (QSRA) competence
Leaders who want to understand the meaning behind the numbers
Anyone tired of “pretend experts” and ready to learn SQRA the right way

Whether you are self‑studying, training a team, or sharpening your professional edge, this book gives you the clarity and confidence to perform "schedule quantitative risk analysis" (SQRA/QSRA) properly.

Why the Colored Edition?
Color enhances comprehension—especially in technical subjects. This edition provides:

Clearer interpretation of charts, diagrams, and risk drivers
Faster understanding of OPRA workflows
Improved retention of key concepts
A more engaging learning experience for visual learners

If you prefer crisp, vivid illustrations that make complex ideas easier to grasp, this edition is for you.
A Practical Guide Written for Real Practitioners. This book was created to eliminate confusion, reduce anxiety around SQRA, and empower professionals to execute risk analysis with competence and integrity. No shortcuts, no intellectual posturing—just clear, honest, structured guidance from someone who has done the work.

Sharpen your skills. Strengthen your credibility. Build schedules that truly reflect risk. Start your journey into proper SQRA today.

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About the Author

Rufran C. Frago, P. Eng., PMP, CCP, PMI-RMP, is the Managing Director of RBM&S Inc., a young Calgary company focusing on risk-based management consulting services, and online merchandising. He has many years of international industry-related work ‎experience in Oil & Gas, Petrochemicals, Oleo-chemicals, Sugar Refining, Manufacturing, Consulting, and Education. He has worked in various parts of the world (Location: Asia, Middle East, Canada, and North Africa). Rufran has worked with Caltex, Uniman, Unichem (now Cocochem), ARAMCO-KSA, Central Azucarera de Tarlac, Arabian Gulf Oil Company-Libya, Batangas State University, Saint Bridget’s College, JG Summit Petrochemicals, Halliburton-Kellogg, Brown and Root, OPTI Canada, and Suncor Energy Inc. His expertise includes risk-based project management, risk analysis, planning & scheduling, cost management, auditing, maintenance, operation, EH&S and reliability engineering. He is interested in providing solutions and innovations to all clients and stakeholders. Rufran is the author of the books “Risk-Based Management in the World of Threats and Opportunities: A Project Controls Perspective” and "How to Create a Good Quality P50 Risk-based Baseline Schedule" published in 2015 and 2017. Mr. Frago is a Filipino-Canadian risk management practitioner. He studied at BSU graduating with a Diploma in Petroleum Refinery Maintenance Technician, and BS Mechanical Engineering. He was also a BS Management Engineering graduate of UB. He took up MBA courses under UP-PBMIT Consortium. Rufran completed Computer Technician Program at ICS-Pennsylvania, USA, APM Certificate program at SAIT-Calgary, and PM Certificate program-Construction Management. He is presently taking up PM Certificate program-Risk Management at University of Calgary. He was a recipient of the Gerry Roxas Leadership Award, the American Field Service (AFS) Scholarship grant, and the CALTEX scholarship grant where he specialized in Petroleum Refinery Maintenance. The author wants to share his knowledge and leave behind some legacy to all readers, most especially to his wife, children and lovely grandchildren, Eva and Mia.

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How to Create a Good Quality P50 Risk-based Baseline Schedule

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