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H03 — Decisions (at a glance)

All Accepted unless noted. Full ADRs under machine/decisions/.

ADR-00N names the decision record. D-00N is the matching row in the governance decision log; D-SEC and D-AFFIL are programme-wide consistency decisions without separate ADR files.

IDDecision
ADR-001Pilot Underground-first; launch breadth deferred
ADR-002Generic railway core schema; London is data, not types
ADR-003Three repos: tunes / tunes-ios / tunes-web
ADR-004Raw audio stays on device by default
ADR-005Derived-only upload default
ADR-006Quality tiers A–E; map must not treat them as equal
ADR-007Watch / AirPods = experiment backlog, not v1
ADR-008Voice Memos / imports = Tier D if accepted at all
ADR-009Minimise manual metadata (optional chips after)
ADR-010Subjective survey after journey; separate from objective
ADR-011Strict claim language; no unsupported health/risk claims
ADR-012Licences provisional (MIT code / CC BY 4.0 docs+data) — legal before publish
ADR-013Named controller(s); informal → CLG by launch; CIC optional later
D-SECCanonical unit = station-to-station section + duration
D-AFFILNo implied TfL endorsement
TopicNeeds
Final licencesLegal
Device correction profilesLab + field experiments
DPIA and final legal-policy reviewFounders + privacy counsel before beta
Launch network breadthStakeholder + coverage evidence

Detail

decision-log · assumptions · human assumptions register