# Database performance review — synthetic sample

This is a reusable evidence structure, not an executed customer benchmark.

## Scope
- Engine/version:
- Defined workload and data volume:
- Investigation question:
- Application owner:

## Controlled comparison
| Item | Baseline | Proposed change | Post-change observation |
| --- | --- | --- | --- |
| Execution plan | Attach reference | Record rationale | Attach reference |
| Latency distribution | Record measurements | Same workload required | Record measurements |
| Resource usage | Record measurements | Record expected effect | Record measurements |
| Correctness | Record checks | Preserve acceptance criteria | Record checks |

## Decision and handover
- Confounding factors:
- Accepted change and supporting evidence:
- Regressions/unresolved findings:
- Rollback and ownership:
- Customer acceptance: