The blog

Schedule risk, explained properly.

Practical writing on QSRA and QCRA — the method, the maths, the P6 workflows, and the tool landscape. No fluff, references included.

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Start here — the two explainers
Practical guides
How-to7 min

Running a schedule risk analysis on a Primavera P6 programme

A practical end-to-end walkthrough: exporting the XER from P6, gating schedule quality, building the risk register, setting three-point ranges, running the Monte Carlo and reading the P80.

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Schedule quality7 min

The DCMA 14-point check, explained for risk analysts

All fourteen DCMA schedule assessment checks, explained through a QSRA lens: which ones actually distort a Monte Carlo, which are hygiene, and what to fix before you simulate.

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The maths, gently5 min

Merge bias: why deterministic dates are optimistic

Two parallel paths, each 50/50 to finish on time, give a project only a 25% chance. Merge bias explained with a closed-form example you can verify — and why simulation is the fix.

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The maths, gently8 min

Latin Hypercube vs Monte Carlo: a steadier P80 in a fraction of the runs

Latin Hypercube sampling stratifies each distribution so every part of it gets drawn — a stable P80 in a fraction of the iterations plain Monte Carlo needs. Why it works, the honest caveat, and how we ship it by default.

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Decision analysis8 min

Which risks are worth buying down? Expected value of information

Not every risk is worth mitigating. Expected value of information ranks risks by how much they actually move your committed date — a sharper guide than the tornado chart, straight out of the Monte Carlo you already run.

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Decision analysis6 min

Why a distribution beats a single date

A single completion date throws away the one thing a sponsor needs — how wrong it might be. The flaw of averages, the value of including uncertainty, and why the distribution is the deliverable.

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Practice6 min

Presenting schedule risk so it lands: the last mile of QSRA

A perfect simulation a committee won't act on has failed quietly. Lead with the decision, carry the story on three charts, and win trust with transparency — the communication craft of schedule risk.

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