Document archive

A curated index of every substantive document in source/, grouped by theme. Where multiple formats exist (e.g. .pptx + .pdf of the same deck), only the most useful is listed.

Trust Framework Proof-of-Concept

The Sandbox onboarding pack, kick-off materials, and governing agreements.

Document	Purpose
`Introduction-to-the-Sandbox-Setup-Guide.pdf`	Non-technical onboarding for prospective Sandbox members
`Introduction-to-the-Sandbox-Technical-Guide.pdf`	Technical onboarding for engineers
`Smart Property Data Trust Framework Project Plan.pdf`	Cross-workstream sequencing
`Sandbox Co-operation Agreement.docx`	Multilateral participant agreement
`ParticipantKickOff_19112025.pdf`	Kick-off briefing for cohort 1
`Raidiam slides Open Property sandbox.pdf`	Raidiam's framing of the operational infrastructure
`Glossary.xlsx`	Working glossary used inside Sandbox sessions
`Sandbox onboarding.xlsx`	Live cohort tracking workbook
`DPMSG Smart Property Data Trust v2.pdf`	DPMSG-published explainer
`DPMSG trust framework explainer.docx`	Working draft, longer-form explainer
`Building Trust in Property Data — article.docx`	Op-ed-style piece used in member & press outreach

DPMSG reports

Public-facing output from the steering group's working groups.

Document	Notes
`DPMSG Data Standards Interoperability — Spring 2025`	Most cited public DPMSG output to date
`data_standards_for_smart_data.pdf`	Companion explainer
`Trust Framework Project Plan (Technical WG version)`	Live cross-WG plan

Member-update decks

Monthly Sandbox WG slides shared with all OPDA members.

Research & consumer materials

Document	Notes
`source/06-research/consumer-survey/`	Consumer research feeding into MHCLG/DSIT submissions
`source/06-research/innovate-uk/`	Innovate UK related materials
`OPDA Digital Property Packs.pptx`	Headline pitch deck
`OPDA Detailed Project Plan.xlsx`	Detailed cross-workstream plan
`Buyer mortgage journey.png`	Reference customer-journey diagram
`DBT Smart Data Roadmap 2024–25`	Government roadmap PDF

Smart Data Challenge submission

Catalogued separately on the Smart Data Challenge page.

Semantic-model deliverables

Document	Purpose
`data-dictionary-canonical.json`	8,458 property entries (machine-readable)
`data-dictionary.md`	Human-readable dictionary
`business-glossary.md`	Three-section human glossary
`business-glossary.ttl`	SKOS Concept Scheme — 554 concepts
`glossary-merged.json`	Merged OPDA Glossary terms (54)