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Pre-mortem planner

Imagine project failure, prioritize plausible risks and assign preventive actions and warning signals.

Imagine the project has failed. List plausible failure modes before selecting preventive actions and warning signals.

Likelihood × impact is an ordinal prioritization aid, not a measured probability or expected financial loss. Up to 50 rows; 4,000 characters per section, 1,200 per table cell.

Risk details
Failure modeLikelihood 1–5Impact 1–5Warning signalPrevention / contingencyOwnerRemove

Your work stays in this tab. Nothing is saved automatically. Save a readable, unencrypted project file before closing. Downloads remain wherever you save them.

Processed on your device. Your files are never uploaded by Justility.

How privacy works

How it works

Open pre-mortem planner, enter your own project details or load the labeled example, then complete the prompts and review the worksheet. Review the results and download your project to continue later.

Supported formats

Editable JSON project up to 1 MB; plain-text report and CSV rows. Up to 50 rows, 4,000 characters per section and 1,200 per cell.

Good to know

Likelihood and impact are 1–5 ordinal ratings, not measured probabilities.

Worked example

Before

Low attendance: likelihood 3, impact 4

After

Priority score 12 with a registration warning signal and venue contingency

The product ranks subjective ratings; it is not a 12% failure probability.

Pre-mortem planner: interpret the result

Imagine project failure, prioritize plausible risks and assign preventive actions and warning signals. Likelihood and impact are 1–5 ordinal ratings, not measured probabilities. All project files are readable and unencrypted. Save and open them explicitly; there is no automatic browser persistence.

Decision tree builder

Troubleshooting

Is a pre-mortem priority score a probability?

No. It multiplies subjective ordinal ratings to help order discussion. Use evidence and review actions rather than interpreting the score as a forecast.

Common questions

Can I use pre-mortem planner offline?

Prepare this tool using Offline help while online. After preparation, it runs locally with fresh input. Browser cache eviction remains possible; keep project downloads separately.

Can I use this without an internet connection?

Yes, after you prepare this tool from Offline help and the browser retains its assets. Installation is optional. All processing dependencies are bundled locally.