Preserve procurement amount precision during editing
Entered 19.90 becomes 19.9 and later rounds. Separate edit text from validated minor units.
- Focused work estimate
- 1h 15m + prerequisites
- Priority in the scenario
- Medium
- Engineering practice
- Forms · Decimal arithmetic
Estimated field mix
- Frontend100%
Field percentages are editorial estimates of the ticket's engineering focus. They total 100%; they are not measured time, proficiency scores, or ownership evidence.
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Project context
Fictional procurement team Northroom collects purchase requests in a browser form. Work uses local stubs and cannot place purchases.
Setup prerequisites
- Create synthetic categories and conditional request fields.
- Stub draft revisions and submission outcomes.
Preceding work
No earlier ticket is required. Complete the project setup above.
Acceptance criteria
- Review uses currency precision
- Incomplete text stays editable
- Excess precision blocks submit
Implementation constraints
- Parse decimals without binary float arithmetic.
Verification to include
- Review 19.90
- Enter excess decimal places
Deliverables
- Amount parser and field cases
Rollout and recovery
Revert formatting while retaining minor-unit storage.
Value of the work
For the engineer: Practice state boundaries and form schema transitions.
For the team: Inspect how hidden obsolete data and duplicate requests are prevented.
Evidence boundaries
Outcome Evidence: Tests, patches, and runbooks are requested deliverables. They become Outcome Evidence only through a qualified Mission and immutable Evidence IDs.
Ownership Evidence: Independent adaptation must be observed under a declared verification policy and cite immutable Evidence IDs. Completing a planning ticket establishes no Ownership Evidence.