# Assumption Ledger Update

Update the assumption ledger with evidence from the outcome review. For each assumption that
drove the feature, record whether it held, weakened, or broke, and adjust confidence accordingly.

## Feature Identity

| Field | Value |
|---|---|
| Feature / capability name | |
| Prior assumption ledger date | |
| Update date | |
| Updater | |

## Assumption Updates

For each assumption in the prior ledger, record the evidence from the outcome review and the
confidence shift.

| # | Assumption | Prior confidence | Evidence from outcome review | Held / Weakened / Broke | New confidence | Notes |
|---|---|---|---|---|---|---|
| 1 | | High / Medium / Low | | | High / Medium / Low | |
| 2 | | | | | | |
| 3 | | | | | | |

## New Assumptions Surfaced

What new assumptions did the outcome review surface that were not in the prior ledger?

| # | New assumption | Trigger (what observation surfaced this) | Initial confidence | Should this be tested? |
|---|---|---|---|---|
| 1 | | | High / Medium / Low | Yes / No |
| 2 | | | | |

## Assumptions to Retire

Which prior assumptions are no longer relevant and should be removed from the active ledger?

| # | Assumption | Reason for retirement |
|---|---|---|
| 1 | | |
| 2 | | |

## Ledger Health

- **Total assumptions (active):**
- **High-confidence assumptions:**
- **Assumptions that weakened or broke this cycle:**
- **Assumptions overdue for re-examination (no update in >2 cycles):**
- **Blind spots:** (areas where we have no assumptions but probably should)

## Routing

- [ ] Updated assumptions routed to roadmap (product-roadmapping-and-portfolio)
- [ ] Testable new assumptions routed to experimentation (product-experimentation)
- [ ] Measurement-gap assumptions routed to analytics (product-analytics-and-measurement)