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Compare Work Risks and Expected Outcomes with Evidence for Probabilities

Summary

Learn to compare work risks through loss impact, probability evidence, a hypothetical expected-value example, and limited trials with clear review points.

Published

Compare Potential Loss and Evidence about Its Likelihood

Compare potential loss and the evidence for its likelihood. Counting benefits and drawbacks does not give them equal significance.

Assess severe losses separately from averages and distinguish hypothetical probabilities from observed information.

Identify Loss and the Evidence Needed

Specify delayed publication, added cost, or missing quality. Atlassian’s premortem explores project concerns and preventive actions. (Atlassian: Premortem)

Distinguish cost records from causal hypotheses.

Distinguish Hypothetical Expected Values from Severe Loss

In hypothetical monetary units, a fifty-percent chance of gaining 100 and fifty-percent chance of losing 50 produce an expected value of 25. The probabilities are assumed for illustration.

Assess whether the loss of 50 is acceptable separately from the positive average.

Define a Limited Trial and Review Point

Set spending, scope, and stopping decisions. Record results to improve evidence about likelihood and cost.

Keep public project descriptions aligned with actual capability.

Distinguish observed occurrences from severe losses that have not occurred. One problem-free trial does not establish zero future probability. Make assumptions and their evidence explicit when information is incomplete.

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Frequently asked questions

Q: Should option lists be judged by item count?

A: Compare loss impact and evidence about likelihood.

Q: What is the example expected value?

A: Twenty-five using the assumed probabilities.

Q: Does a positive average justify action?

A: Assess severe loss and reversal effort too.

Q: What should a trial specify?

A: Spending, scope, stopping decisions, and review timing.

Sources

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