State Management Brief
Record authority, transitions, effects, lifetime, and acceptance cases before implementation.
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This is a consumer planning template within Design Engineering. It supplements the Component Contract; it is not a profile schema or evidence record.
Reusable Method
For each independently owned value, complete one inventory row. Avoid a single status enum that conflates validation, request progress, persisted revision, and selection.
| Field | Required answer |
|---|---|
| User task | Action and observable result |
| Authoritative source | Server, route, form, component, or session owner |
| State shape | Valid values, initial value, identity and revision |
| Derived values | Inputs, equality, and cache invalidation if any |
| Writes | Accepted intents, payloads, rejection and normalization |
| Transitions | Event + guard → next state + effect |
| Lifetime | Creation, identity switch, navigation, disposal and cleanup |
| Async policy | Request identity, duplicates, stale results, uncertainty |
| Persistence | Stored fields, scope, version, expiry, restoration conflicts |
| Recovery | Retry, discard, reconciliation and focus destination |
| Composition | Selected patterns and any rejected alternatives |
| Evidence | Failure trace, expected result, runtime, actual result |
Worked Brief: Editing A Display Name
| Value | Owner | Lifetime | Write rule |
|---|---|---|---|
| Acknowledged name and revision | Server; cache holds observation | Account session | Matching authoritative response |
| Draft name | Settings form | Until discard, accepted save, or guarded departure | User edit |
| Dirty | Derived | Same as form | Compare draft to acknowledged baseline |
| Submitted name and request ID | Save operation | One attempt | Capture before starting effect |
| Pending destination | Router guard | Confirmation decision | Latest attempted destination |
Invariant: acknowledging A never marks later draft B saved. Failure trace: edit A → submit → edit B → acknowledge A. Expected result: A is the baseline; B remains visible and dirty. Rejected alternative: binding fields directly to the cache loses a reliable Cancel target.
Implementation Handoff
domain: design-engineering
state_patterns: [draft-and-baseline, submitted-snapshot, unsaved-navigation]
state_owner: settings form and save operation
persistence_owner: consumer backend
consumer_reference: not_applicable
consumer_reference_reason: This blank planning example selects no consumer profile or conformance record.
observed_results: not_run
remaining_evidence: consumer runtime, request traces, keyboard and focus recoveryOpinionated Guidance
An unresolved owner is an implementation question, not a reason to introduce more booleans. Write product choices such as discard policy explicitly; do not hide them inside effects.
Platform-Specific Guidance
Include router, cache, framework, and persistence adapter versions only in the consumer handoff where they affect behavior. Check IME input and native form submission for editable fields.
Unsupported Absolutes
Completing this template does not establish executed evidence or backend persistence. A request token alone cannot resolve concurrent server edits.
Verification Contract
A second reader should identify every write owner and execute the failure trace without inventing policy. Record normal, failed, interrupted, and identity-changing cases before implementation.
Source, License, And Attribution
Locally authored synthesis and examples. No upstream implementation is copied. These experimental contracts describe consumer-owned behavior; review when a failure, ownership change, or platform change invalidates an assumption.
IA Navigation
Parent: State Management. Next: Continue the state management route.