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Last modified by Robert Schaub on 2025/12/24 20:35
From version 5.1
edited by Robert Schaub
on 2025/11/27 12:28
Change comment: There is no comment for this version
To version 1.2
edited by Robert Schaub
on 2025/11/27 12:03
Change comment: Update document after refactoring.

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1 -== 1. Overall analysis & review of the data model ==
2 -
3 -=== 1.1 Strengths of the current design ===
4 -
5 -* (((
6 -**Identity vs. version pattern**
7 -Using base entities plus version entities (CLAIM + CLAIM_VERSION, SCENARIO + SCENARIO_VERSION, etc.) is exactly how modern knowledge systems handle:
8 -
9 -* auditability
10 -* time evolution
11 -* re-evaluation triggers
12 -* federation and partial replication
13 -)))
14 -* (((
15 -**Scenario-centric reasoning**
16 -Separating //Claim// (what people argue about) from //Scenario// (interpretive frame) is very aligned with “truth landscape” style systems:
17 -
18 -* Scenarios explain //why people disagree//.
19 -* Verdicts are tied to specific scenario versions → avoids mixing incompatible assumptions.
20 -)))
21 -* **Evidence and verdicts as first-class entities**
22 -Evidence is explicit, linked to scenarios, and verdicts are per scenario. This matches good practice from fact-checking, scientific assessment panels, and trust graphs.
23 -* (((
24 -**Cluster level (CLAIM_CLUSTER)**
25 -Grouping related claims avoids duplication and lets you:
26 -
27 -* reuse scenarios across paraphrases
28 -* share embeddings / semantic search
29 -* keep the system scalable as the corpus grows.
30 -)))
31 -* (((
32 -**Explicit review layer (REVIEW_ACTION, roles, etc.)**
33 -Separating “data” from “who reviewed what” keeps the model clean, and is exactly what you want for:
34 -
35 -* governance
36 -* permissions
37 -* audit trails
38 -* future trust scoring per user / role.
39 -)))
40 -
41 -----
42 -
43 -=== 1.2 Design decisions I’m locking in (based on our discussions) ===
44 -
45 -To make the model consistent and “state-of-the-art”, I will assume the following as //current intended design//:
46 -
47 -1. (((
48 -**Claims vs Scenarios**
49 -
50 -* CLAIM is the stable identity for “what people argue about”.
51 -* CLAIM_VERSION are individual phrasings / formulations / metadata.
52 -* (((
53 -SCENARIO belongs to a **CLAIM**, not to a specific CLAIM_VERSION.
54 -Rationale:
55 -
56 -* Many different phrasings share the //same// scenario.
57 -* You avoid duplicating scenarios per wording.
58 -)))
59 -* SCENARIO_VERSION holds detailed definitions, assumptions, boundaries, etc.
60 -)))
61 -1. (((
62 -**Version-specific reasoning**
63 -
64 -* **Verdicts** are always attached to SCENARIO_VERSION (not base SCENARIO).
65 -* **Evidence links** are between SCENARIO_VERSION and EVIDENCE_VERSION.
66 -→ This is what we agreed when we said //“SCENARIO_EVIDENCE_LINK should link the respective versions instead”//.
67 -)))
68 -1. (((
69 -**Clusters**
70 -
71 -* CLAIM_CLUSTER groups Claims (semantically close claims).
72 -* It is visible in **both diagrams** (Core Data Model and Data Use).
73 -)))
74 -1. (((
75 -**Review vs data**
76 -
77 -* (((
78 -All review happens **on versioned entities**:
79 -
80 -* CLAIM_VERSION
81 -* SCENARIO_VERSION
82 -* EVIDENCE_VERSION
83 -* SCENARIO_EVIDENCE_LINK_VERSION
84 -* VERDICT_VERSION
85 -)))
86 -* REVIEW_ACTION is the generic log of //who// did //what// on //which version//.
87 -)))
88 -1. (((
89 -**Users & roles**
90 -
91 -* USER has an attribute (or a linked entity) that distinguishes **technical users** from normal accounts.
92 -* We //keep// TECHNICAL_USER as a specialisation of USER (strictly technical accounts).
93 -* All human & technical accounts can hold roles via USER_ROLE_MEMBERSHIP.
94 -* (((
95 -Roles include:
96 -
97 -* READER
98 -* CONTRIBUTOR
99 -* TRUSTED_CONTRIBUTOR
100 -* REVIEWER
101 -* MODERATOR
102 -* SYSTEM_ADMIN / MAINTAINER
103 -* FEDERATION_OPERATOR
104 -* FEDERATION_ADMIN
105 -(all present in the Data Use ERD, but as rows of ROLE rather than separate entities).
106 -)))
107 -)))
108 -
109 -----
110 -
111 -=== 1.3 Gaps / potential problems ===
112 -
113 -These are the main issues & missing areas I see:
114 -
115 -1. (((
116 -**Versioning text in chapter 5 is currently too thin (‘…’ placeholders)**
117 -
118 -* (((
119 -The spec does not yet //verbally// spell out:
120 -
121 -* the identity vs version pattern, systematically
122 -* how re-evaluation triggers are derived from version changes
123 -* how this aligns with federation (which versions are replicated where).
124 -)))
125 -)))
126 -1. (((
127 -**No explicit “provenance granularity” in the model**
128 -
129 -* (((
130 -EVIDENCE is a single entity. For more advanced use cases, you may later want:
131 -
132 -* EVIDENCE_SOURCE (the whole article/report/video)
133 -* EVIDENCE_FRAGMENT (specific paragraph/clip with its own reliability, quote, etc.)
134 -)))
135 -* For now, I’ll keep EVIDENCE/EVIDENCE_VERSION as is, but I’ll mention this as a possible extension.
136 -)))
137 -1. (((
138 -**Review target polymorphism**
139 -
140 -* (((
141 -REVIEW_ACTION can apply to multiple entity types. In the diagram this shows as multiple relationships:
142 -
143 -* CLAIM_VERSION → REVIEW_ACTION
144 -* SCENARIO_VERSION → REVIEW_ACTION
145 -* etc.
146 -)))
147 -* A more “pure” relational modeling would use a generic “subjectType + subjectId” or an intermediate “REVIEW_TARGET” table.
148 -* For readability, I’ll keep the simpler multi-edge representation and mention the polymorphism in text.
149 -)))
150 -1. (((
151 -**Federation details missing from core ERD**
152 -
153 -* There is no explicit FEDERATION_NODE / REPLICATION_LOG in the Data Model chapter.
154 -* This is ok for “core logical data model”, but I’ll add a short note that federation metadata is handled in the Federation chapter and via additional entities.
155 -)))
156 -1. (((
157 -**Automation / AKEL artifacts left implicit**
158 -
159 -* (((
160 -The Data Model chapter currently doesn’t describe:
161 -
162 -* AKEL task queues
163 -* extraction runs
164 -* model versions
165 -)))
166 -* That’s fine for now; I’ll just clarify that those belong to a “Processing / AKEL” submodel, not the core logical data model.
167 -)))
168 -
169 169  = 5. Data Model =
170 170  
171 171  The FactHarbor data model centers on four fully versioned, immutable entities:
... ... @@ -209,10 +209,10 @@
209 209   (scenarios live at the *claim* level, not per individual phrasing).
210 210  * Verdicts and Scenario–Evidence links are always attached to **versions**:
211 211  * {{code}}SCENARIO_VERSION{{/code}} +
212 -{{code}}EVIDENCE_VERSION{{/code}} →
213 -{{code}}SCENARIO_EVIDENCE_LINK_VERSION{{/code}}
44 + {{code}}EVIDENCE_VERSION{{/code}} →
45 + {{code}}SCENARIO_EVIDENCE_LINK_VERSION{{/code}}
214 214  * {{code}}SCENARIO_VERSION{{/code}} →
215 -{{code}}VERDICT_VERSION{{/code}}
47 + {{code}}VERDICT_VERSION{{/code}}
216 216  
217 217  This ensures that when a Scenario or Evidence changes, old verdicts and links
218 218  remain intact as historical records and can be revisited.
... ... @@ -225,9 +225,128 @@
225 225  The convention is that fields ending in {{code}}Id{{/code}} are primary keys,
226 226  and fields with {{code}}...IdFk{{/code}} are foreign keys.
227 227  
228 -{{comment}} Core Data Model ERD (Mermaid, from /Specification/Diagrams/Data Model) {{/comment}}
229 -{{include document="FactHarbor.Playground.Core Data Model ERD Page (from Specification chat).WebHome"/}}
60 +{{mermaid}}
61 +erDiagram
230 230  
63 + CLAIM_CLUSTER {
64 + string claimClusterId
65 + string theme
66 + string embeddingVectorRef
67 + string language
68 + datetime createdAt
69 + }
70 +
71 + CLAIM {
72 + string claimId
73 + string claimClusterIdFk
74 + string status
75 + datetime createdAt
76 + }
77 +
78 + CLAIM_VERSION {
79 + string claimVersionId
80 + string claimIdFk
81 + string text
82 + string language
83 + string claimType
84 + string domain
85 + string authorType
86 + datetime createdAt
87 + }
88 +
89 + SCENARIO {
90 + string scenarioId
91 + string claimIdFk
92 + string key
93 + string title
94 + boolean isDeprecated
95 + }
96 +
97 + SCENARIO_VERSION {
98 + string scenarioVersionId
99 + string scenarioIdFk
100 + string versionTag
101 + string definitionsJson
102 + string assumptionsJson
103 + string boundariesJson
104 + string notes
105 + datetime createdAt
106 + }
107 +
108 + EVIDENCE {
109 + string evidenceId
110 + string canonicalSourceId
111 + string mainUrl
112 + string evidenceType
113 + string language
114 + }
115 +
116 + EVIDENCE_VERSION {
117 + string evidenceVersionId
118 + string evidenceIdFk
119 + string snapshotLocation
120 + string extractionSummary
121 + string reliabilityModel
122 + datetime collectedAt
123 + datetime createdAt
124 + }
125 +
126 + SCENARIO_EVIDENCE_LINK {
127 + string scenarioEvidenceLinkId
128 + string scenarioIdFk
129 + string evidenceIdFk
130 + }
131 +
132 + SCENARIO_EVIDENCE_LINK_VERSION {
133 + string scenarioEvidenceLinkVersionId
134 + string scenarioEvidenceLinkIdFk
135 + string scenarioVersionIdFk
136 + string evidenceVersionIdFk
137 + float relevance
138 + string direction %% SUPPORTS / CONTRADICTS / MIXED / CONTEXT
139 + string rationale
140 + datetime createdAt
141 + }
142 +
143 + VERDICT {
144 + string verdictId
145 + string scenarioIdFk
146 + string verdictType %% e.g. likelihood, classification
147 + }
148 +
149 + VERDICT_VERSION {
150 + string verdictVersionId
151 + string verdictIdFk
152 + string scenarioVersionIdFk
153 + float probability
154 + float confidence
155 + string reasoningSummary
156 + string uncertaintyFactorsJson
157 + datetime createdAt
158 + }
159 +
160 + %% Relationships
161 +
162 + CLAIM_CLUSTER ||--o{ CLAIM : contains
163 + CLAIM ||--o{ CLAIM_VERSION : has_versions
164 + CLAIM ||--o{ SCENARIO : has_scenarios
165 + SCENARIO ||--o{ SCENARIO_VERSION : has_versions
166 +
167 + EVIDENCE ||--o{ EVIDENCE_VERSION : has_versions
168 +
169 + SCENARIO ||--o{ SCENARIO_EVIDENCE_LINK : may_link
170 + EVIDENCE ||--o{ SCENARIO_EVIDENCE_LINK : may_link
171 +
172 + SCENARIO_EVIDENCE_LINK ||--o{ SCENARIO_EVIDENCE_LINK_VERSION : has_versions
173 +
174 + SCENARIO_VERSION ||--o{ SCENARIO_EVIDENCE_LINK_VERSION : uses_evidence
175 + EVIDENCE_VERSION ||--o{ SCENARIO_EVIDENCE_LINK_VERSION : is_used_in
176 +
177 + SCENARIO ||--o{ VERDICT : has_verdicts
178 + VERDICT ||--o{ VERDICT_VERSION : has_versions
179 + SCENARIO_VERSION ||--o{ VERDICT_VERSION : assessed_in
180 +{{/mermaid}}
181 +
231 231  **Important points:**
232 232  
233 233  * Scenarios and Evidence are **linked via their versions**
... ... @@ -248,9 +248,87 @@
248 248  * Roles and role assignments
249 249  * Review actions on versioned entities
250 250  
251 -{{comment}} Data Use ERD (Mermaid, from /Specification/Diagrams/Data Use ERD) {{/comment}}
252 -{{include document="FactHarbor.Playground.Data Use ERD Page (from Specification chat).WebHome"/}}
202 +{{mermaid}}
203 +erDiagram
253 253  
205 + USER {
206 + string userId
207 + string displayName
208 + string email
209 + string userType %% "human" or "technical"
210 + datetime createdAt
211 + }
212 +
213 + TECHNICAL_USER {
214 + string technicalUserId
215 + string userIdFk
216 + string description
217 + string systemIdentifier
218 + }
219 +
220 + ROLE {
221 + string roleId
222 + string code %% e.g. READER, CONTRIBUTOR, REVIEWER, TRUSTED_CONTRIBUTOR, MODERATOR, SYSTEM_ADMIN, FEDERATION_OPERATOR, FEDERATION_ADMIN
223 + string description
224 + boolean isFederationRole
225 + }
226 +
227 + USER_ROLE_MEMBERSHIP {
228 + string membershipId
229 + string userIdFk
230 + string roleIdFk
231 + datetime grantedAt
232 + string grantedByUserIdFk
233 + }
234 +
235 + REVIEW_ACTION {
236 + string reviewActionId
237 + string subjectType %% e.g. CLAIM_VERSION, SCENARIO_VERSION...
238 + string subjectVersionId
239 + string actionType %% APPROVE, REJECT, FLAG, COMMENT, REQUEST_CHANGES...
240 + string outcome %% ACCEPTED, REJECTED, ESCALATED...
241 + string comment
242 + string createdByUserIdFk
243 + datetime createdAt
244 + }
245 +
246 + %% Versioned data entities (references from the core model)
247 +
248 + CLAIM_VERSION {
249 + string claimVersionId
250 + }
251 +
252 + SCENARIO_VERSION {
253 + string scenarioVersionId
254 + }
255 +
256 + EVIDENCE_VERSION {
257 + string evidenceVersionId
258 + }
259 +
260 + SCENARIO_EVIDENCE_LINK_VERSION {
261 + string scenarioEvidenceLinkVersionId
262 + }
263 +
264 + VERDICT_VERSION {
265 + string verdictVersionId
266 + }
267 +
268 + %% Relationships
269 +
270 + USER ||--o{ TECHNICAL_USER : may_be
271 + USER ||--o{ USER_ROLE_MEMBERSHIP : has_role
272 + ROLE ||--o{ USER_ROLE_MEMBERSHIP : assigned_to
273 +
274 + USER ||--o{ REVIEW_ACTION : performs
275 +
276 + CLAIM_VERSION ||--o{ REVIEW_ACTION : is_reviewed_in
277 + SCENARIO_VERSION ||--o{ REVIEW_ACTION : is_reviewed_in
278 + EVIDENCE_VERSION ||--o{ REVIEW_ACTION : is_reviewed_in
279 + SCENARIO_EVIDENCE_LINK_VERSION ||--o{ REVIEW_ACTION : is_reviewed_in
280 + VERDICT_VERSION ||--o{ REVIEW_ACTION : is_reviewed_in
281 +{{/mermaid}}
282 +
254 254  Notes:
255 255  
256 256  * Most roles (READER, CONTRIBUTOR, TRUSTED_CONTRIBUTOR, REVIEWER, MODERATOR,
... ... @@ -280,7 +280,7 @@
280 280  * It may inherit some links from earlier scenarios, or start empty depending
281 281   on the change classification (cosmetic vs. conceptual).
282 282  * All verdicts for that scenario are recalculated and stored as new
283 -{{code}}VERDICT_VERSION{{/code}} entries.
312 + {{code}}VERDICT_VERSION{{/code}} entries.
284 284  
285 285  * REVIEW_ACTIONs are always attached to the **exact version** that was seen by
286 286   the reviewer. This preserves a faithful audit trail if data later changes.