Wiki source code of Data Model
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1.1 | 1 | = Data Model = |
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2.1 | 3 | This page describes the current data model for FactHarbor 0.9.25. |
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1.1 | 4 | |
| 5 | == 1. Versioning Strategy == | ||
| 6 | |||
| 7 | Every entity in FactHarbor has a full immutable version history. This ensures: | ||
| 8 | * Complete auditability | ||
| 9 | * Ability to reconstruct historical state | ||
| 10 | * Federation-compatible lineage tracking | ||
| 11 | * Transparent evolution of claims, scenarios, and verdicts | ||
| 12 | |||
| 13 | === 1.1 Core Versioning Principles === | ||
| 14 | |||
| 15 | **Immutability**: | ||
| 16 | * Each version is stored independently | ||
| 17 | * Versions cannot be deleted, only superseded | ||
| 18 | * Historical versions remain accessible | ||
| 19 | |||
| 20 | **Lineage**: | ||
| 21 | * Each version links to its parent via `ParentVersionID` | ||
| 22 | * Forms directed acyclic graph (DAG) of changes | ||
| 23 | * Supports branching in federated environments | ||
| 24 | |||
| 25 | **Provenance**: | ||
| 26 | * Every version timestamped (`CreatedAt`) | ||
| 27 | * Author type recorded (`AuthorType`: Human, AI, ExternalNode) | ||
| 28 | * Justification captured (`JustificationText`) | ||
| 29 | * Digital signatures for integrity (`SignatureHash` in Release 1.0) | ||
| 30 | |||
| 31 | **Federation Support**: | ||
| 32 | * Versions can originate from remote nodes | ||
| 33 | * Conflict detection via lineage comparison | ||
| 34 | * Parallel version trees for branching scenarios | ||
| 35 | * Cross-node version synchronization | ||
| 36 | |||
| 37 | === 1.2 Common Version Fields === | ||
| 38 | |||
| 39 | All versioned entities include: | ||
| 40 | |||
| 41 | * **VersionID**: Unique identifier for this specific version | ||
| 42 | * **ParentVersionID**: Link to previous version (null for first version) | ||
| 43 | * **CreatedAt**: Timestamp (ISO 8601, UTC) | ||
| 44 | * **AuthorType**: Human | AI | ExternalNode | ||
| 45 | * **CreatedBy**: Foreign key to User or TechnicalUser | ||
| 46 | * **JustificationText**: Brief explanation of changes | ||
| 47 | * **PublicationMode**: Mode1 (draft) | Mode2 (AI-published) | Mode3 (human-reviewed) | ||
| 48 | * **ReviewStatus**: Workflow state (draft|in_review|approved|rejected) | ||
| 49 | * **NodeOrigin**: Node ID where version was created (for federation) | ||
| 50 | * **SignatureHash**: Cryptographic signature (Release 1.0) | ||
| 51 | |||
| 52 | |||
| 53 | === 1.3 Versioning Architecture Diagram === | ||
| 54 | |||
| 55 | {{include reference="FactHarbor.Specification.Diagrams.Versioning Architecture.WebHome"/}} | ||
| 56 | |||
| 57 | |||
| 58 | == 2. Core Entity Definitions == | ||
| 59 | |||
| 60 | === 2.1 User Entities === | ||
| 61 | |||
| 62 | **USER** (base user table): | ||
| 63 | * ``UserID`` (PK) | ||
| 64 | * ``UserType`` (Reader|Contributor|Reviewer|Auditor|Expert|Moderator|Maintainer) | ||
| 65 | * ``DisplayName`` | ||
| 66 | * ``Email`` (for Contributors and above) | ||
| 67 | * ``RegisteredAt`` | ||
| 68 | * ``LastActive`` | ||
| 69 | * ``Status`` (active|suspended|banned) | ||
| 70 | |||
| 71 | **TECHNICAL_USER** (system processes): | ||
| 72 | * ``SystemID`` (PK) | ||
| 73 | * ``SystemName`` | ||
| 74 | * ``Purpose`` (AKEL|FederationSync|BackupService|Monitor|Audit) | ||
| 75 | * ``CreatedBy`` (FK to Maintainer who created this system user) | ||
| 76 | * ``CreatedAt`` | ||
| 77 | * ``Status`` (active|paused|deprecated) | ||
| 78 | * ``ApiKey`` (encrypted) | ||
| 79 | * ``Permissions`` (JSON - authorized operations) | ||
| 80 | |||
| 81 | **Examples of Technical Users**: | ||
| 82 | * AKEL instances (AI processing) | ||
| 83 | * Federation sync bots | ||
| 84 | * Scheduled audit tasks | ||
| 85 | * Backup services | ||
| 86 | * Monitoring systems | ||
| 87 | * External API integrations | ||
| 88 | |||
| 89 | |||
| 90 | === 2.2 Content Entities === | ||
| 91 | |||
| 92 | The system relies on the following versioned core entities: | ||
| 93 | |||
| 94 | **CLAIM_CLUSTER**: | ||
| 95 | * ``ClusterID`` (PK) | ||
| 96 | * ``EmbeddingVectorRef`` | ||
| 97 | * ``Theme`` | ||
| 98 | * Groups related claims into topical clusters | ||
| 99 | * One Cluster has many Claims | ||
| 100 | * A Claim belongs to exactly one primary cluster | ||
| 101 | |||
| 102 | **CLAIM / CLAIM_VERSION**: | ||
| 103 | * ``CLAIM`` is the long-lived anchor for a real-world claim | ||
| 104 | * ``CLAIM_VERSION`` is an immutable snapshot that includes: | ||
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2.1 | 105 | * ``VersionID`` (PK) |
| 106 | * ``ClaimID`` (FK to CLAIM) | ||
| 107 | * ``ParentVersionID`` (FK to prior version, nullable) | ||
| 108 | * ``Text`` | ||
| 109 | * ``Domain`` | ||
| 110 | * ``ClaimType`` (literal|metaphorical|rhetorical|supernatural) | ||
| 111 | * ``Evaluability`` (empirical|subjective|non-falsifiable) | ||
| 112 | * ``RiskTier`` (A|B|C) - replaced SafetyCategory for consistency | ||
| 113 | * ``PublicationMode`` (Mode1|Mode2|Mode3) | ||
| 114 | * ``ReviewStatus`` (draft|in_review|approved|rejected) | ||
| 115 | * ``CreatedAt``, ``AuthorType``, ``CreatedBy``, ``JustificationText`` | ||
| 116 | * ``NodeOrigin``, ``SignatureHash`` | ||
| 117 | * ``Status`` (active|superseded|merged) | ||
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1.1 | 118 | |
| 119 | **SCENARIO / SCENARIO_VERSION**: | ||
| 120 | * ``SCENARIO`` is the anchor for a scenario across time | ||
| 121 | * ``SCENARIO_VERSION`` is an immutable snapshot: | ||
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2.1 | 122 | * ``VersionID`` (PK) |
| 123 | * ``ScenarioID`` (FK to SCENARIO) | ||
| 124 | * ``ParentVersionID`` | ||
| 125 | * ``ClaimID`` (FK to CLAIM) | ||
| 126 | * ``Definitions`` (JSON) | ||
| 127 | * ``Boundaries`` (JSON) | ||
| 128 | * ``Assumptions`` (JSON) | ||
| 129 | * ``Context`` (text) | ||
| 130 | * ``EvaluationMethod`` (text) | ||
| 131 | * ``PublicationMode`` (Mode1|Mode2|Mode3) | ||
| 132 | * ``ReviewStatus`` (draft|in_review|approved|rejected) | ||
| 133 | * ``CreatedAt``, ``AuthorType``, ``CreatedBy``, ``JustificationText`` | ||
| 134 | * ``NodeOrigin``, ``SignatureHash`` | ||
| 135 | * ``Status`` (active|superseded|deprecated) | ||
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1.1 | 136 | |
| 137 | **Note**: SafetyClass removed from Scenario - risk tier is at claim level | ||
| 138 | |||
| 139 | **EVIDENCE / EVIDENCE_VERSION**: | ||
| 140 | * ``EVIDENCE`` is the anchor | ||
| 141 | * ``EVIDENCE_VERSION`` is the versioned snapshot: | ||
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2.1 | 142 | * ``VersionID`` (PK) |
| 143 | * ``EvidenceID`` (FK to EVIDENCE) | ||
| 144 | * ``ParentVersionID`` | ||
| 145 | * ``Type`` (paper|dataset|report|transcript|expert|media) | ||
| 146 | * ``Category`` (empirical|historical|rhetorical|dataset|meta-analysis) | ||
| 147 | * ``Reliability`` (low|medium|high) | ||
| 148 | * ``Provenance`` (URL, DOI, source metadata) | ||
| 149 | * ``ExtractionMethod`` (manual|OCR|API|AKEL) | ||
| 150 | * ``ContentHash`` (SHA256 of evidence content) | ||
| 151 | * ``PublicationMode`` (Mode1|Mode2|Mode3) | ||
| 152 | * ``ReviewStatus`` (draft|verified|disputed|retracted) | ||
| 153 | * ``CreatedAt``, ``AuthorType``, ``CreatedBy``, ``JustificationText`` | ||
| 154 | * ``NodeOrigin``, ``SignatureHash`` | ||
| 155 | * ``Status`` (active|superseded) | ||
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1.1 | 156 | |
| 157 | **VERDICT / VERDICT_VERSION**: | ||
| 158 | * ``VERDICT`` is the anchor | ||
| 159 | * ``VERDICT_VERSION`` is the snapshot: | ||
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2.1 | 160 | * ``VersionID`` (PK) |
| 161 | * ``VerdictID`` (FK to VERDICT) | ||
| 162 | * ``ParentVersionID`` | ||
| 163 | * ``ClaimID`` (FK to CLAIM) | ||
| 164 | * ``ScenarioVersionID`` (FK to specific SCENARIO_VERSION) | ||
| 165 | * ``EvidenceVersionSet`` (JSON array of Evidence VersionIDs used) | ||
| 166 | * ``LikelihoodRange`` (0–1, with uncertainty bounds) | ||
| 167 | * ``ExplanationChain`` (JSON) | ||
| 168 | * ``UncertaintyFactors`` (JSON) | ||
| 169 | * ``PublicationMode`` (Mode1|Mode2|Mode3) | ||
| 170 | * ``ReviewStatus`` (draft|in_review|approved|retracted) | ||
| 171 | * ``CreatedAt``, ``AuthorType``, ``CreatedBy``, ``JustificationText`` | ||
| 172 | * ``NodeOrigin``, ``SignatureHash`` | ||
| 173 | * ``Status`` (current|outdated|superseded|retracted) | ||
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1.1 | 174 | |
| 175 | |||
| 176 | == 3. Many-to-Many Linking Tables == | ||
| 177 | |||
| 178 | **ScenarioEvidenceLink**: | ||
| 179 | * Links scenario versions to evidence versions with relevance scoring | ||
| 180 | * ``ScenarioID``, ``ScenarioVersionID`` | ||
| 181 | * ``EvidenceID``, ``EvidenceVersionID`` | ||
| 182 | * ``RelevanceScore`` (0–1) - How relevant this evidence is to this scenario | ||
| 183 | * ``LinkJustification`` - Brief explanation of relevance | ||
| 184 | |||
| 185 | **Purpose**: | ||
| 186 | * Evidence can be used by multiple scenarios | ||
| 187 | * Scenarios can draw from multiple pieces of evidence | ||
| 188 | * Relevance scoring helps prioritize evidence | ||
| 189 | * Version-specific linking preserves historical accuracy | ||
| 190 | |||
| 191 | **ClaimCluster**: | ||
| 192 | * Semantic clustering of similar claims | ||
| 193 | * ``ClusterID`` (PK) | ||
| 194 | * ``EmbeddingVector`` - Vector representation for semantic search | ||
| 195 | * ``MemberList`` - List of ClaimIDs in this cluster | ||
| 196 | * ``Theme`` - Human-readable theme description | ||
| 197 | |||
| 198 | |||
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2.1 | 199 | == 4. Key Changes Since 0.9.1 == |
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1.1 | 200 | |
| 201 | **Updated Field Names**: | ||
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2.1 | 202 | * `SafetyCategory` → ``RiskTier`` (consistency with risk tier system A/B/C) |
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1.1 | 203 | * `SafetyClass` removed from Scenario (redundant with claim-level RiskTier) |
| 204 | |||
| 205 | **Added Fields to All Version Entities**: | ||
| 206 | * `PublicationMode` - Track Mode 1/2/3 status | ||
| 207 | * `ReviewStatus` - Track workflow state | ||
| 208 | * `NodeOrigin` - Federation provenance | ||
| 209 | * `CreatedBy` - FK to User/TechnicalUser (clarified) | ||
| 210 | |||
| 211 | **New Entity**: | ||
| 212 | * `TECHNICAL_USER` - Separate system processes from human users | ||
| 213 | |||
| 214 | **Clarifications**: | ||
| 215 | * `ScenarioVersionID` in Verdict (not just ScenarioID) - links to specific version | ||
| 216 | * `ContentHash` in Evidence - SHA256 for integrity checking | ||
| 217 | |||
| 218 | |||
| 219 | == 5. Data Model Behavior == | ||
| 220 | |||
| 221 | === 5.1 Late-Arriving Evidence === | ||
| 222 | |||
| 223 | When new evidence versions appear: | ||
| 224 | 1. Existing verdicts marked as **outdated** | ||
| 225 | 2. Scenario relevance must be re-evaluated | ||
| 226 | 3. Re-evaluation engine triggers verdict recomputation | ||
| 227 | 4. New verdict versions created | ||
| 228 | 5. Users notified of updates | ||
| 229 | |||
| 230 | === 5.2 Scenario Evolution === | ||
| 231 | |||
| 232 | When a scenario's assumptions or definitions change: | ||
| 233 | * Creates new scenario version (not in-place update) | ||
| 234 | * All dependent verdicts must be recalculated | ||
| 235 | * Previous scenario versions remain accessible | ||
| 236 | * Version lineage preserved | ||
| 237 | |||
| 238 | === 5.3 Federated Nodes === | ||
| 239 | |||
| 240 | Each node may share partial data: | ||
| 241 | * Claims and scenarios shared if relevant | ||
| 242 | * Evidence metadata shared, not always full files | ||
| 243 | * Version synchronization via NodeOrigin tracking | ||
| 244 | * Branching allowed for divergent interpretations | ||
| 245 | |||
| 246 | |||
| 247 | == 6. Visual Diagrams == | ||
| 248 | |||
| 249 | The following diagrams provide visual representations of the data model structure and relationships. | ||
| 250 | |||
| 251 | === 6.1 Core Data Model ERD === | ||
| 252 | |||
| 253 | {{include reference="FactHarbor.Specification.Diagrams.Core Data Model ERD.WebHome"/}} | ||
| 254 | |||
| 255 | === 6.2 User Roles Structure === | ||
| 256 | |||
| 257 | {{include reference="FactHarbor.Specification.Diagrams.User Class Diagram.WebHome"/}} | ||
| 258 | |||
| 259 | === 6.3 Content Workflow === | ||
| 260 | |||
| 261 | {{include reference="FactHarbor.Specification.Diagrams.Claim and Scenario Workflow.WebHome"/}} | ||
| 262 | |||
| 263 | |||
| 264 | == 7. Related Pages == | ||
| 265 | |||
| 266 | * [[Federation & Decentralization>>FactHarbor.Specification.Federation & Decentralization.WebHome]] | ||
| 267 | * [[AKEL (AI Knowledge Extraction Layer)>>FactHarbor.Specification.AI Knowledge Extraction Layer (AKEL).WebHome]] | ||
| 268 | * [[Architecture>>FactHarbor.Specification.Architecture.WebHome]] | ||
| 269 |