Forecast evaluation / Delivery leads, planning owners and acceptance reviewers
Manager memoRead signed forecast error without hiding misses
Separate early and late prediction errors from their magnitude.
The guide separates directional cancellation from prediction-error magnitude.
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Original worked case · Manual planning resource
Inspect the decision, not just the summary.
Start with the invented evidence, follow the reasoning, and retain its limits when adapting the brief.
02 · Follow the reasoning
How the case leads to a decision
Signed mean=(2−2+2−2)/4=0 days. Mean absolute error=(2+2+2+2)/4=2 days. Cancellation in the signed mean does not erase individual misses.
The bounded result
Mean signed error is zero, while every forecast misses by two days. Report the lack of mean directional bias separately from error magnitude.
01 · Inspect the inputs
Every record stays visible
| Case | Predicted days | Actual days | Signed error | Absolute error |
|---|---|---|---|---|
| A | 4 | 6 | +2 | 2 |
| B | 6 | 4 | −2 | 2 |
| C | 5 | 7 | +2 | 2 |
| D | 7 | 5 | −2 | 2 |
Use horizontal scrolling for wide tables. These records are invented, not customer data.
Definitions and method context
Records, decisions and policies are original synthetic examples. External references supply context; they do not validate these cases or TeamBoostAI capabilities.
Forecasting: Principles and Practice — accuracy ↗
Genuine held-out forecast and point-error evaluation context. Binary scoring examples use their own explicit toy definitions; no real task model is validated.
External references checked 6 October 2026. Demand for these topics has not been measured.
A report that leads to a decision
Illustrative manager memoSynthetic planning case: Four saved duration forecasts are 4,6,5 and 7 days; actual durations are 6,4,7 and 5. The declared signed error is actual minus forecast.
- Freeze the error convention
- Evaluation owner: Actual minus forecast is used for all four cases.
- Inspect direction and magnitude
- Reviewer: Zero signed mean is shown beside two-day mean absolute error.
- Bound the interpretation
- Planning lead: The note does not call the forecasts exact or validated from these four invented cases.
Decision to make: Mean signed error is zero, while every forecast misses by two days. Report the lack of mean directional bias separately from error magnitude.
Filled manual planning note
Invented planning text. Adapt it to your evidence and confirmed owners.
Mean signed error is zero, while every forecast misses by two days. Report the lack of mean directional bias separately from error magnitude. Signed mean=(2−2+2−2)/4=0 days. Mean absolute error=(2+2+2+2)/4=2 days. Cancellation in the signed mean does not erase individual misses. Four synthetic cases cannot validate a model, independence or future error. These are illustrative held-out-style records, not real task analytics.
Put the outline to work
- Freeze the error convention. Check: Actual minus forecast is used for all four cases.
- Inspect direction and magnitude. Check: Zero signed mean is shown beside two-day mean absolute error.
- Bound the interpretation. Check: The note does not call the forecasts exact or validated from these four invented cases.
Questions about this workflow
What does a positive error mean here?
Actual duration was longer than forecast under the stated actual-minus-forecast convention.
Does zero bias prove a useful forecast?
No. Magnitude, evaluation context and the decisions affected by misses still matter.
Does this create tasks in the product?
No. The brief is a manual planning resource. Use the product access link to check onboarding and the workflows available in your account.
From a useful outline to team work
Explore TeamBoostAI for your team
Use the owned checks and downloaded brief to discuss this planning decision alongside your TeamBoostAI tasks. Confirm available fields, roles and account features separately. The example is manual; it does not calculate live analytics, create work or run an experiment in the product. Confirm the workflows available in your account before adopting this outline.
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