OPDA Knowledge base
Physical — deployment

Per-named-graph layout

Per-named-graph layout

One section per named graph the deployment exposes. Triple counts measured by rdflib.Graph().parse(<file>) against the committed TTLs at HEAD. Load order resolves owl:imports chains; graphs without owl:Ontology declarations (opda-classes.ttl, opda-vocabularies.ttl) participate in the default-graph union and have no owl:imports of their own.

Load order summary

--- config: layout: elk elk: mergeEdges: false nodePlacementStrategy: BRANDES_KOEPF --- %%{init: {"theme": "base", "themeVariables": {"primaryColor": "#FFF8E1", "primaryTextColor": "#E65100", "primaryBorderColor": "#F57F17", "lineColor": "#37474F"}}}%% flowchart LR accTitle: Named-graph load order accDescr: Shows the load order of foundation, vocabularies, class, shape, and annotation named graphs and how owl:imports chains link them. classDef data fill:#FFF8E1,stroke:#F57F17,stroke-width:2px,color:#E65100 classDef infra fill:#E3F2FD,stroke:#1565C0,stroke-width:2px,color:#0D47A1 F["foundation.ttl
opda.org.uk/pdtf/
versionIRI 1.0.0/"]:::data V["opda-vocabularies.ttl
opda.org.uk/pdtf/vocabularies/
dct:references DPV"]:::data Cl["opda-classes.ttl
no ontology IRI
class declarations"]:::data SH["opda-shapes.ttl
opda.org.uk/pdtf/graph/shapes
foundation meta-shapes"]:::data AN["opda-annotations.ttl
opda.org.uk/pdtf/graph/annotations
meta-annotations"]:::data P["opda-MODULE.ttl × 6
module TBoxes"]:::data PS["opda-MODULE-shapes.ttl × 6
module shapes"]:::data PA["opda-MODULE-annotations.ttl × 6
DPV annotations"]:::data B["profiles/baspi5.ttl
opda.org.uk/pdtf/profiles/baspi5"]:::data F -->|owl:imports| P V -->|owl:imports| P P -.->|loads alongside| PS P -.->|loads alongside| PA F -->|owl:imports| B V -->|owl:imports| B PS -.->|loads alongside| B

Named-graph layout — clusters

The 25 named graphs cluster by role. Foundation graphs are loaded first; module-TBox graphs import the foundation substrate; module-shape and module-annotation graphs ride alongside their matching TBox graph; overlay profiles cite the foundation but the consumer typically merges all six module-shape graphs for full BASPI5 validation.

--- config: layout: elk elk: mergeEdges: false nodePlacementStrategy: BRANDES_KOEPF --- %%{init: {"theme": "base", "themeVariables": {"primaryColor": "#FFF8E1", "primaryTextColor": "#E65100", "primaryBorderColor": "#F57F17", "lineColor": "#37474F"}}}%% flowchart TB accTitle: Named-graph layout by cluster accDescr: Groups the 25 named graphs by role - foundation, vocabularies, module-classes, module-shapes, module-annotations, and overlay profiles - with version IRI annotations on the TBox graphs. classDef data fill:#FFF8E1,stroke:#F57F17,stroke-width:2px,color:#E65100 classDef infra fill:#E3F2FD,stroke:#1565C0,stroke-width:2px,color:#0D47A1 subgraph FND["Foundation cluster"] FN1["opda.org.uk/pdtf/
1.0.0/"]:::infra FN2["opda-classes
(no IRI)"]:::data FN3["opda.org.uk/pdtf/graph/shapes"]:::infra FN4["opda.org.uk/pdtf/graph/annotations"]:::infra end subgraph VOC["Vocabularies cluster"] VC1["opda-vocabularies
(no IRI; SKOS aggregate)"]:::data end subgraph MCLS["Module-TBox cluster (6)"] MC1["opda.org.uk/pdtf/graph/property
1.0.0/"]:::infra MC2["opda.org.uk/pdtf/graph/agent
1.0.0/"]:::infra MC3["opda.org.uk/pdtf/graph/transaction
1.0.0/"]:::infra MC4["opda.org.uk/pdtf/graph/claim
1.0.0/"]:::infra MC5["opda.org.uk/pdtf/graph/governance
1.0.0/"]:::infra MC6["opda.org.uk/pdtf/graph/descriptive
1.0.0/"]:::infra end subgraph MSH["Module-shape cluster (6)"] MS1["opda.org.uk/pdtf/graph/property-shapes"]:::infra MS2["opda.org.uk/pdtf/graph/agent-shapes"]:::infra MS3["opda.org.uk/pdtf/graph/transaction-shapes"]:::infra MS4["opda.org.uk/pdtf/graph/claim-shapes"]:::infra MS5["opda.org.uk/pdtf/graph/governance-shapes"]:::infra MS6["opda.org.uk/pdtf/graph/descriptive-shapes"]:::infra end subgraph MAN["Module-annotation cluster (6)"] MA1["opda.org.uk/pdtf/graph/property-annotations"]:::infra MA2["opda.org.uk/pdtf/graph/agent-annotations"]:::infra MA3["opda.org.uk/pdtf/graph/transaction-annotations"]:::infra MA4["opda.org.uk/pdtf/graph/claim-annotations"]:::infra MA5["opda.org.uk/pdtf/graph/governance-annotations"]:::infra MA6["opda.org.uk/pdtf/graph/descriptive-annotations"]:::infra end subgraph OVR["Overlay-profile cluster"] OB1["opda.org.uk/pdtf/profiles/baspi5
versionIRI 0.1.0/"]:::infra end FND --> MCLS VOC --> MCLS MCLS -.-> MSH MCLS -.-> MAN FND --> OVR VOC --> OVR MSH -.-> OVR

Named-graph dependency graph

owl:imports chains across the deployment. The foundation versionIRI https://opda.org.uk/pdtf/harness/release/1.0.0/ is imported by every module-TBox graph and by every overlay profile. The vocabularies graph (cited as https://opda.org.uk/pdtf/scheme/) is imported alongside the foundation in every module TBox and overlay. Shape graphs declare no owl:imports (per ODR-0004 §3a separation rule 3) and load alongside their matching TBox graph.

--- config: layout: elk elk: mergeEdges: false nodePlacementStrategy: BRANDES_KOEPF --- %%{init: {"theme": "base", "themeVariables": {"primaryColor": "#FFF8E1", "primaryTextColor": "#E65100", "primaryBorderColor": "#F57F17", "lineColor": "#37474F"}}}%% flowchart LR accTitle: Named-graph owl-imports dependency graph accDescr: Shows how every module-TBox graph and overlay profile imports the foundation versionIRI and the vocabularies graph via owl:imports. classDef data fill:#FFF8E1,stroke:#F57F17,stroke-width:2px,color:#E65100 F["opda.org.uk/pdtf/1.0.0/
foundation versionIRI"]:::data V["opda.org.uk/pdtf/vocabularies/
SKOS schemes"]:::data P["opda.org.uk/pdtf/graph/property"]:::data A["opda.org.uk/pdtf/graph/agent"]:::data T["opda.org.uk/pdtf/graph/transaction"]:::data Cl["opda.org.uk/pdtf/graph/claim"]:::data G["opda.org.uk/pdtf/graph/governance"]:::data D["opda.org.uk/pdtf/graph/descriptive"]:::data B["opda.org.uk/pdtf/profiles/baspi5"]:::data F -->|owl:imports| P F -->|owl:imports| A F -->|owl:imports| T F -->|owl:imports| Cl F -->|owl:imports| G F -->|owl:imports| D F -->|owl:imports| B V -->|owl:imports| P V -->|owl:imports| A V -->|owl:imports| T V -->|owl:imports| Cl V -->|owl:imports| G V -->|owl:imports| D V -->|owl:imports| B

Foundation graphs

https://opda.org.uk/pdtf/

Source TTL(s)

Purpose

Default-graph entry point. Carries the owl:Ontology declaration for the OPDA namespace, the foundation metadata (creator, license, issued, modified, version), the vann:preferredNamespacePrefix, and the global sh:declare for the opda: prefix. This is the graph a consumer loads first.

Load order

  • No owl:imports. Loaded first.

Triple count

15 triples (HEAD; bytes 1 851; sha256 6e328d3acd24…).

Version IRI

https://opda.org.uk/pdtf/harness/release/1.0.0/. Bumped on every module-TBox or vocabulary release per ADR-0013. Last bump: 1.0.0 (foundation + SKOS vocabularies + UFO meta-classes + module shapes + DPV annotations + overlay profiles + ValidationContext + hasSpecialCategoryData — ADR-0009..ADR-0014).

(no ontology IRI — class graph)

Source TTL(s)

Purpose

The class graph carries the six foundation owl:Class declarations (DiagnosticExemplar, GeneratorRun, RoleMixin, Role, Relator, ValidationContext) plus the single ADR-0014 G14 opda:hasSpecialCategoryData owl:DatatypeProperty. Three-graph separation per ODR-0004 §3a requires this file MUST NOT contain sh:NodeShape triples; those live in the matching -shapes.ttl.

Load order

  • No owl:imports. Merges into the default-graph union alongside foundation.ttl.

Triple count

36 triples (HEAD; bytes 6 756; sha256 7494bad0c6c9…).

Version IRI

None at file level — class graph rides on the foundation owl:versionIRI.

https://opda.org.uk/pdtf/graph/shapes

Source TTL(s)

Purpose

Foundation SHACL meta-shapes (Cat 3 NoIdentityOverride, Cat 5 MetaShapeOverShapeGraph, three-rule interface contract: ShInSemantics + ShViolationFloor) plus two cross-cutting SHACL-AF rules (PIIWithoutDPVCoAnnotationRule per ODR-0012 §Q5; DeprecationChainRule per ODR-0011 §5a). MUST NOT contain owl:Class or owl:imports triples per three-graph separation.

Load order

  • No owl:imports. Loaded after foundation + class graphs for SHACL validation.

Triple count

51 triples (HEAD; bytes 7 493; sha256 52f8442ba3ab…).

Version IRI

None at file level.

https://opda.org.uk/pdtf/graph/annotations

Source TTL(s)

Purpose

Foundation meta-annotation graph (DPV co-annotation scaffolding). Minimal at MVP; per-module annotation graphs do the substantive work.

Load order

  • No owl:imports.

Triple count

3 triples (HEAD; bytes 1 224; sha256 cd0282bbfea1…).

Version IRI

None at file level.

Vocabulary graph

(no ontology IRI — SKOS scheme aggregate)

Source TTL(s)

Purpose

The 23 SKOS Concept Schemes per ODR-0011 §1a + §8a seven-category UFO framework: AddressVariantScheme, AssuranceLevelScheme, and 21 others. References DPV via dct:references (reference-not-import per ADR-0010). The lifecycle SHACL-AF rule body for deprecated concepts lives in opda-shapes.ttl.

Load order

  • No owl:imports. Pure SKOS-scheme aggregate. Loaded by every module TBox via the canonical https://opda.org.uk/pdtf/scheme/ import.

Triple count

873 triples (HEAD; bytes 62 450; sha256 bff1c21289dd…).

Version IRI

None at file level; module imports cite https://opda.org.uk/pdtf/scheme/ as the canonical import target (the redirect serves this file).

Module-TBox graphs

Each module-TBox graph imports the foundation + vocabularies via canonical URLs. The composer rewrites these to local file paths during build; at deploy time the W3C PICG redirect resolves them.

https://opda.org.uk/pdtf/graph/property

Source TTL(s)

Purpose

Property module TBox: physical Property, LegalEstate, RegisteredTitle, Address + variant-specific subclasses, Lease-Term, UPRNSuccessionEvent, LeaseExtensionEvent. The Identity-Criterion crux of OPDA.

Load order

  • owl:imports <https://opda.org.uk/pdtf/harness/release/1.0.0/> — foundation.
  • owl:imports <https://opda.org.uk/pdtf/scheme/> — SKOS schemes.

Triple count

199 triples (HEAD; bytes 18 845; sha256 5bb1f05454d5…).

Version IRI

https://opda.org.uk/pdtf/harness/release/property/1.0.0/.

https://opda.org.uk/pdtf/graph/agent

Source TTL(s)

Purpose

Agent module TBox: Person, Organisation, Proprietor + Proprietorship Relator, Seller / Buyer roles, NameChangeEvent.

Load order

  • owl:imports <https://opda.org.uk/pdtf/harness/release/1.0.0/>.
  • owl:imports <https://opda.org.uk/pdtf/scheme/>.

Triple count

77 triples (HEAD; bytes 9 203; sha256 e2e0841bbf80…).

Version IRI

https://opda.org.uk/pdtf/harness/release/agent/1.0.0/.

https://opda.org.uk/pdtf/graph/transaction

Source TTL(s)

Purpose

Transaction module TBox: Transaction Relator, Milestone, TransactionChain.

Load order

  • owl:imports <https://opda.org.uk/pdtf/harness/release/1.0.0/>.
  • owl:imports <https://opda.org.uk/pdtf/scheme/>.

Triple count

39 triples (HEAD; bytes 5 391; sha256 fb85b3b680af…).

Version IRI

https://opda.org.uk/pdtf/harness/release/transaction/1.0.0/.

https://opda.org.uk/pdtf/graph/claim

Source TTL(s)

Purpose

Claim module TBox: Claim, three Evidence subtypes (Document, ElectronicRecord, Vouch), VerificationActivity, AssuranceLevel, TrustFramework.

Load order

  • owl:imports <https://opda.org.uk/pdtf/harness/release/1.0.0/>.
  • owl:imports <https://opda.org.uk/pdtf/scheme/>.

Triple count

86 triples (HEAD; bytes 9 534; sha256 93c577b0545e…).

Version IRI

https://opda.org.uk/pdtf/harness/release/claim/1.0.0/.

https://opda.org.uk/pdtf/graph/governance

Source TTL(s)

Purpose

Governance module TBox: DPV mapping records that link OPDA kinds to GDPR personal-data categories.

Load order

  • owl:imports <https://opda.org.uk/pdtf/harness/release/1.0.0/>.
  • owl:imports <https://opda.org.uk/pdtf/scheme/>.

Triple count

42 triples (HEAD; bytes 4 424; sha256 f1fae7ca0722…).

Version IRI

https://opda.org.uk/pdtf/harness/release/governance/1.0.0/.

https://opda.org.uk/pdtf/graph/descriptive

Source TTL(s)

Purpose

Descriptive module TBox: EPCCertificate, Search, Survey, Valuation, Comparable.

Load order

  • owl:imports <https://opda.org.uk/pdtf/harness/release/1.0.0/>.
  • owl:imports <https://opda.org.uk/pdtf/scheme/>.

Triple count

35 triples (HEAD; bytes 4 457; sha256 1c236b44a11d…).

Version IRI

https://opda.org.uk/pdtf/harness/release/descriptive/1.0.0/.

Module-shape graphs

Each per-module shape graph carries Cat 1/2 identity + IC-breach shapes plus SHACL-AF non-blocking quality rules. None declare owl:imports; consumers load them alongside the matching TBox graph.

https://opda.org.uk/pdtf/graph/property-shapes

Source TTL(s)

Purpose

Property identity-key shapes (e.g. UPRN-keyed identity), IC-breach (anti-pattern) shapes, SHACL-AF rules for property-level quality.

Load order

  • No owl:imports. Loaded alongside opda-property.ttl.

Triple count

54 triples (HEAD; bytes 5 442; sha256 60033df2aad7…).

Version IRI

None at file level.

https://opda.org.uk/pdtf/graph/agent-shapes

Source TTL(s)

Purpose

Agent identity-key + IC-breach shapes.

Load order

  • No owl:imports. Loaded alongside opda-agent.ttl.

Triple count

44 triples (HEAD; bytes 4 992; sha256 03b3ef71747c…).

Version IRI

None at file level.

https://opda.org.uk/pdtf/graph/transaction-shapes

Source TTL(s)

Purpose

Transaction Relator and Milestone identity + IC-breach shapes; SHACL-AF rules for chain-overlap detection.

Load order

  • No owl:imports. Loaded alongside opda-transaction.ttl.

Triple count

37 triples (HEAD; bytes 4 502; sha256 92bdbecb9352…).

Version IRI

None at file level.

https://opda.org.uk/pdtf/graph/claim-shapes

Source TTL(s)

Purpose

Claim, Evidence, VerificationActivity identity + IC-breach shapes.

Load order

  • No owl:imports. Loaded alongside opda-claim.ttl.

Triple count

45 triples (HEAD; bytes 4 562; sha256 87e46fd432a0…).

Version IRI

None at file level.

https://opda.org.uk/pdtf/graph/governance-shapes

Source TTL(s)

Purpose

DPV mapping-record shapes.

Load order

  • No owl:imports. Loaded alongside opda-governance.ttl.

Triple count

13 triples (HEAD; bytes 1 639; sha256 2f3bd8a4b244…).

Version IRI

None at file level.

https://opda.org.uk/pdtf/graph/descriptive-shapes

Source TTL(s)

Purpose

EPC / Search / Survey / Valuation / Comparable identity + IC-breach shapes.

Load order

  • No owl:imports. Loaded alongside opda-descriptive.ttl.

Triple count

27 triples (HEAD; bytes 3 822; sha256 4b8d458b7d49…).

Version IRI

None at file level.

Module-annotation graphs

Each per-module annotation graph carries DPV class-level baselines + variant-conditional refinement maps per ODR-0018. Reference-not-import for DPV: DPV terms cited via dct:references and URIRef triples; no owl:imports <https://w3id.org/dpv/pd> per ADR-0012.

https://opda.org.uk/pdtf/graph/property-annotations

Source TTL(s)

Purpose

DPV annotations for Property module: baseline categories per class + per-variant refinements.

Load order

  • No owl:imports. Loaded alongside opda-property.ttl for UI / DPV consumers.

Triple count

31 triples (HEAD; bytes 2 837; sha256 a6cfbd2e353c…).

Version IRI

None at file level.

https://opda.org.uk/pdtf/graph/agent-annotations

Source TTL(s)

Purpose

DPV annotations for Agent module (Person PII baseline, etc.).

Load order

  • No owl:imports. Loaded alongside opda-agent.ttl.

Triple count

22 triples (HEAD; bytes 2 551; sha256 eecead55b8bc…).

Version IRI

None at file level.

https://opda.org.uk/pdtf/graph/transaction-annotations

Source TTL(s)

Purpose

DPV annotations for Transaction module.

Load order

  • No owl:imports. Loaded alongside opda-transaction.ttl.

Triple count

6 triples (HEAD; bytes 1 617; sha256 49007a05cd6a…).

Version IRI

None at file level.

https://opda.org.uk/pdtf/graph/claim-annotations

Source TTL(s)

Purpose

DPV annotations for Claim module.

Load order

  • No owl:imports. Loaded alongside opda-claim.ttl.

Triple count

27 triples (HEAD; bytes 2 558; sha256 9903c726fd3e…).

Version IRI

None at file level.

https://opda.org.uk/pdtf/graph/governance-annotations

Source TTL(s)

Purpose

DPV annotations for Governance module.

Load order

  • No owl:imports. Loaded alongside opda-governance.ttl.

Triple count

6 triples (HEAD; bytes 1 706; sha256 02bb7b14a288…).

Version IRI

None at file level.

https://opda.org.uk/pdtf/graph/descriptive-annotations

Source TTL(s)

Purpose

DPV annotations for Descriptive module.

Load order

  • No owl:imports. Loaded alongside opda-descriptive.ttl.

Triple count

14 triples (HEAD; bytes 2 938; sha256 d36e42030ad4…).

Version IRI

None at file level.

Overlay-profile graph

https://opda.org.uk/pdtf/shape/profiles/baspi5

Source TTL(s)

Purpose

BASPI5 (British Association of Surveyors Property Information, version 5) overlay profile. Per-form cardinality, enum subsets, DASH UI rendering. Composes over the foundation + module TBox + base shapes per ODR-0010. MVP gate per ADR-0014.

Load order

  • owl:imports <https://opda.org.uk/pdtf/harness/release/1.0.0/>.
  • owl:imports <https://opda.org.uk/pdtf/scheme/>.
  • Implicit: every per-module shape graph (consumers loading this profile typically merge with all 6 module-shape graphs for full validation).

Triple count

488 triples (HEAD; bytes 23 520; sha256 c647c45e00ca…).

Version IRI

https://opda.org.uk/pdtf/shape/profiles/baspi5/0.1.0/. Form version 5.0.3 (per opda:Baspi5ValidationContext).

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