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John Williamson

About: John Williamson

John Williamson, PMP, brings over decades of experience in project, program and portfolio management, of public sector projects, spanning public health, motor vehicles, corrections, taxation and child welfare services. He is currently kept busy as a schedule consultant on one of California's largest IT projects and enjoys training and mentoring the next generation of project schedulers. Contact John at

All Articles and Webinars by John Williamson

How to Schedule in Reverse

Written on May 7, 2019, by

Or How to Trust Alice Some of us may remember the early childhood bedtime story of Alice stepping through the looking glass. She finds that, just like a reflection, everything is reversed, including logic (running helps you remain stationary, walking away from something brings you towards it). As a scheduler, have you ever been asked…

Tip: Trust Your Formulas!

Written on December 5, 2016, by

Have you ever had a situation where a tested, tried and true formula was producing an “incorrect” result? Recently one of my client schedulers wanted to know, “How can a formula produce correct results for 500 other tasks, but produce an obviously incorrect result for only one task?” In her schedule she was using this…

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