citation-evidence/workplans/CE-WP-0012-attribute-value-types.md

id	type	title	domain	repo	repo_id	topic_slug	topic_id	status	owner	created	updated	depends_on_workplan	planning_order	planning_priority	spec_refs	state_hub_workstream_id
CE-WP-0012	workplan	Attribute value types — time, datetime, amount, one-of, some-of	infotech	citation-evidence	a677c189-b4e2-4f2a-9e48-faa482c277e6	citation_evidence_mvp	cee7bedf-2b48-46ef-8601-006474f2ad7a	finished	codex	2026-07-30	2026-07-30	CE-WP-0011	12	high	wiki/AttributeValueTypes-proposal.md workplans/CE-WP-0010-annotate-attributes-ux.md ../info-tech-canon/seeds/InfoTechCanonDataModel_RC1_seed.md	46704d45-5ee2-5f8d-a0e7-ddeb931ffa27

CE-WP-0012 — Attribute Value Types

Extend Capture attributes beyond text / textarea / date with the types needed for real evidence work, aligned with a canonical AttributeValueType catalog (proposed under InfoTechCanon; interim consumer profile in wiki/AttributeValueTypes-proposal.md).

Research summary (locked finding)

InfoTechCanon Data Model already defines Attribute, Field, DataType, Representation, and CodeList, but DataType is a stub and there is no closed catalog of application value types. Representation only lists open examples (string, date, timestamp, code, …).

Therefore: establish the catalog in InfoTechCanon (ITC-WP-0013), implement UI and persistence here as a consumer.

User-requested types (MVP slice)

Type	Purpose
time	Clock time without date
datetime	Date + time
amount	Quantity with currency (or unit)
one-of	Single choice from options
some-of	Multi choice from options

Keep existing: text, textarea (alias text-long), date.

Goals

1. Schema + UI support for the MVP types above.
2. Option lists for one-of / some-of editable in Capture.
3. Wire encoding documented and round-tripped in capture-state + tests.
4. No fork of type ids: prefer names from wiki/AttributeValueTypes-proposal.md once ITC catalog exists; until then use the proposal as interim canon.

Non-goals

• Full ISO 11179 registry product.
• Arbitrary JSON Schema forms.
• Server-side validation service.
• Publishing a shared npm package in this workplan (may follow).

Dependency order

T01 (decide wire encodings + finalize interim catalog in wiki)
  └─ T02 (extend FormFieldSchema + FieldDefinitionForm types)
       └─ T03 (widgets: time, datetime, amount)
            └─ T04 (widgets: one-of, some-of + options editor)
                 └─ T05 (persist options; migrate legacy textarea if needed)
                      └─ T06 (tests + demo schema examples)

Parallel: ITC-WP-0013 formalizes the catalog in info-tech-canon; CE may ship T01–T06 against the wiki proposal and remap ids if ITC renames.

---

T01 — Finalize interim catalog + encodings

id: CE-WP-0012-T01
status: done
priority: high
state_hub_task_id: "2df0deb2-0e99-591d-9de1-36c98789c741"

Resolve decision asks in wiki/AttributeValueTypes-proposal.md §8 with operator; freeze MVP wire forms for amount / one-of / some-of.

Acceptance: proposal §4 marked “accepted for CE MVP” (or amended).

---

T02 — Schema extension

id: CE-WP-0012-T02
status: done
priority: high
depends_on: [T01]
state_hub_task_id: "6f2369e8-aa52-5540-9362-19d558a17637"

Extend FormFieldSchema / FieldType in evidence-binder:

• add time, datetime, amount, one-of, some-of
• optional options?: { id, label }[] for choice types
• optional amount metadata (default currency) if needed

Acceptance: typecheck green; FieldDefinitionForm lists new types.

---

T03 — Scalar widgets (time, datetime, amount)

id: CE-WP-0012-T03
status: done
priority: high
depends_on: [T02]
state_hub_task_id: "18f3c81f-5f52-5635-bd75-9748c748e49b"

Render HTML time, datetime-local (or split date+time), and amount UI. Values persist as strings (or structured JSON for amount per T01).

Acceptance: add/edit/value round-trip for each type in DOM tests.

---

T04 — Choice widgets (one-of, some-of)

id: CE-WP-0012-T04
status: done
priority: high
depends_on: [T02]
state_hub_task_id: "975de5c5-61a3-5efb-b97c-fcaa0792fd85"

• one-of: select or radio
• some-of: checkbox group
• options editor when defining the attribute

Acceptance: create attribute with options, select values, persist.

---

T05 — Capture-state compatibility

id: CE-WP-0012-T05
status: done
priority: medium
depends_on: [T03, T04]
state_hub_task_id: "299c534b-627f-5072-840c-1c209a615af7"

• load/save options in capture-state
• accept legacy sessions without options
• document amount/some-of JSON in capture-persistence comments

---

T06 — Tests + demo attributes

id: CE-WP-0012-T06
status: done
priority: medium
depends_on: [T05]
state_hub_task_id: "1364d9f5-8ff8-59dc-bb8c-c5683add4b66"

• unit/DOM coverage for new types
• optional demo schema fields exercising amount + one-of
• pnpm test green

---

Out of scope / follow-ups

• Align TypeScript const enum with published ITC YAML.
• Evidence extraction helpers that suggest amount/date from PDF quotes.
• Validation constraints (min/max, regex) as first-class UI.