Changes for page Data Model (From Specification Chat)

Last modified by Robert Schaub on 2025/12/24 20:35

From 4.1 to 5.1 From 8.1 to 8.2

From version 5.1

edited by Robert Schaub
on 2025/11/27 12:28

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To version 8.1

edited by Robert Schaub
on 2025/11/27 12:55

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@@ -1,3 +1,162 @@
++(((
++
++)))
++
++= 5. Data Model =
++
++The FactHarbor data model centers on four fully versioned, immutable entities:
++
++* **Claim**
++* **Scenario**
++* **Evidence**
++* **Verdict**
++
++These entities form the structured **“truth landscape”** for each claim.
++The model is explicitly **versioned**, **traceable**, and **federation-ready**.
++
++To keep the system auditable and explainable, FactHarbor uses a consistent
++**identity vs. version** pattern:
++
++* Identity entities (e.g. {{code}}CLAIM{{/code}}, {{code}}SCENARIO{{/code}})
++  define *what* something is in a stable sense.
++* Version entities (e.g. {{code}}CLAIM_VERSION{{/code}}, {{code}}SCENARIO_VERSION{{/code}})
++  define *how that thing looked at a given point in time*.
++
++All reasoning (e.g. verdicts, review actions) is attached to **versions**, never to
++mutable identities.
++
++----
++
++= 5.1 Core entities and versioning pattern =
++
++(% class="wikitable" %)
++| **Logical concept** | **Identity entity** | **Version entity** | **Notes**
++| Claim (what people argue about) | {{code}}CLAIM{{/code}} | {{code}}CLAIM_VERSION{{/code}} | Claim text, phrasing, and metadata live in {{code}}CLAIM_VERSION{{/code}}. The identity {{code}}CLAIM{{/code}} stays stable across rephrasings.
++| Scenario (interpretive frame) | {{code}}SCENARIO{{/code}} | {{code}}SCENARIO_VERSION{{/code}} | A SCENARIO belongs to a CLAIM. Its versions capture evolving definitions, assumptions, and boundaries.
++| Evidence (source / datapoint) | {{code}}EVIDENCE{{/code}} | {{code}}EVIDENCE_VERSION{{/code}} | Identity of a source vs. specific extractions / updates over time.
++| Verdict (assessment) | {{code}}VERDICT{{/code}} | {{code}}VERDICT_VERSION{{/code}} | A VERDICT is defined per SCENARIO; VERDICT_VERSION captures the history of assessments.
++| Scenario–Evidence link | {{code}}SCENARIO_EVIDENCE_LINK{{/code}} | {{code}}SCENARIO_EVIDENCE_LINK_VERSION{{/code}} | Links bind scenario versions to evidence versions with relevance & direction.
++| Claim cluster (semantic group) | {{code}}CLAIM_CLUSTER{{/code}} | – | Groups semantically related claims; mainly for discovery and navigation.
++
++Key design decisions:
++
++* A {{code}}CLAIM{{/code}} belongs to exactly one {{code}}CLAIM_CLUSTER{{/code}}.
++* A {{code}}SCENARIO{{/code}} belongs to exactly one {{code}}CLAIM{{/code}}
++  (scenarios live at the *claim* level, not per individual phrasing).
++* Verdicts and Scenario–Evidence links are always attached to **versions**:
++* {{code}}SCENARIO_VERSION{{/code}} +
++{{code}}EVIDENCE_VERSION{{/code}} →
++{{code}}SCENARIO_EVIDENCE_LINK_VERSION{{/code}}
++* {{code}}SCENARIO_VERSION{{/code}} →
++{{code}}VERDICT_VERSION{{/code}}
++
++This ensures that when a Scenario or Evidence changes, old verdicts and links
++remain intact as historical records and can be revisited.
++
++----
++
++= 5.2 Core Data Model ERD (expanded, versioned) =
++
++The following Mermaid ER diagram shows the main entities and their relationships.
++The convention is that fields ending in {{code}}Id{{/code}} are primary keys,
++and fields with {{code}}...IdFk{{/code}} are foreign keys.
++
++{{comment}} Core Data Model ERD (Mermaid, from /Specification/Diagrams/Data Model) {{/comment}}
++{{include document="FactHarbor.Playground.Core Data Model ERD Page (from Specification chat).WebHome" reference="FactHarbor.Playground.data.Core Data Model ERD Page (from Specification chat).WebHome"/}}
++
++**Important points:**
++
++* Scenarios and Evidence are **linked via their versions**
++  ({{code}}SCENARIO_VERSION{{/code}} and {{code}}EVIDENCE_VERSION{{/code}}).
++* Verdicts are **per ScenarioVersion** and stored in {{code}}VERDICT_VERSION{{/code}}.
++* {{code}}CLAIM_CLUSTER{{/code}} is shared across diagrams; it is shown here and in the Data Use / Review model.
++
++All version entities are immutable: once created, they are never changed, only
++superseded by newer versions.
++
++----
++
++= 5.3 Data Use & Review ERD =
++
++The **Data Use** model captures who does what with which versioned data:
++
++* Users (including technical users)
++* Roles and role assignments
++* Review actions on versioned entities
++
++{{comment}} Data Use ERD (Mermaid, from /Specification/Diagrams/Data Use ERD) {{/comment}}
++{{include document="FactHarbor.Playground.Data Use ERD Page (from Specification chat).WebHome" reference="FactHarbor.Playground.data.Data Use ERD Page (from Specification chat).WebHome"/}}
++
++
++Notes:
++
++* Most roles (READER, CONTRIBUTOR, TRUSTED_CONTRIBUTOR, REVIEWER, MODERATOR,
++  SYSTEM_ADMIN, FEDERATION_OPERATOR, FEDERATION_ADMIN, …) are represented as rows
++  in {{code}}ROLE{{/code}}.
++* {{code}}TECHNICAL_USER{{/code}} captures strictly technical accounts (API keys,
++  node-to-node federation agents, batch jobs). All other roles can, in principle,
++  be held by both human and technical users where appropriate.
++* A {{code}}READER{{/code}} normally does **not** perform REVIEW_ACTIONs, while
++  roles like REVIEWER, TRUSTED_CONTRIBUTOR, MODERATOR, and some federation roles
++  do.
++
++----
++
++= 5.4 Versioning and re-evaluation behavior =
++
++This section ties the data model to the re-evaluation logic
++(described in more detail in the Versioning and Automation chapters).
++
++* When a new {{code}}EVIDENCE_VERSION{{/code}} is created:
++* All related {{code}}SCENARIO_EVIDENCE_LINK_VERSION{{/code}} entries referencing
++    that evidence version are candidates for re-assessment.
++* Related {{code}}VERDICT_VERSION{{/code}} entries may become **outdated** and
++    are queued for re-evaluation.
++
++* When a new {{code}}SCENARIO_VERSION{{/code}} is created:
++* It may inherit some links from earlier scenarios, or start empty depending
++    on the change classification (cosmetic vs. conceptual).
++* All verdicts for that scenario are recalculated and stored as new
++{{code}}VERDICT_VERSION{{/code}} entries.
++
++* REVIEW_ACTIONs are always attached to the **exact version** that was seen by
++  the reviewer. This preserves a faithful audit trail if data later changes.
++
++* In a federated environment, nodes can choose:
++* which identity entities to replicate (CLAIM, SCENARIO, EVIDENCE, VERDICT)
++* which versioned entities to replicate (e.g. only accepted VERDICT_VERSIONs,
++    only EVIDENCE_VERSIONs above a reliability threshold, etc.)
++
++----
++
++= 5.5 Behavioral Notes =
++
++== 5.5.1 Late-Arriving Evidence ==
++
++New evidence versions can make existing verdicts **outdated** and may trigger
++re-evaluation cascades. This is handled by the global trigger and automation
++architecture (see the Versioning & Automation chapters).
++
++== 5.5.2 Scenario Evolution ==
++
++Scenario changes create new SCENARIO_VERSIONs; dependent verdicts and
++Scenario–Evidence links are re-assessed. Old versions remain available for
++historical comparison and reproducibility.
++
++== 5.5.3 Federation ==
++
++Federated nodes can replicate subsets of the graph, including:
++
++* Claims and Scenarios of local interest
++* Evidence metadata (without full content)
++* Verdict lineages used for local decision-making
++
++Federation-specific entities (such as {{code}}FEDERATION_NODE{{/code}},
++replication logs, and trust rules) are described in the Federation &
++Decentralization chapter and build on top of the core data model defined here.
++
++----
++
  == 1. Overall analysis & review of the data model ==
  === 1.1 Strengths of the current design ===
@@ -165,155 +165,3 @@
  )))
  * That’s fine for now; I’ll just clarify that those belong to a “Processing / AKEL” submodel, not the core logical data model.
  )))
--
--= 5. Data Model =
--
--The FactHarbor data model centers on four fully versioned, immutable entities:
--
--* **Claim**
--* **Scenario**
--* **Evidence**
--* **Verdict**
--
--These entities form the structured **“truth landscape”** for each claim.
--The model is explicitly **versioned**, **traceable**, and **federation-ready**.
--
--To keep the system auditable and explainable, FactHarbor uses a consistent
--**identity vs. version** pattern:
--
--* Identity entities (e.g. {{code}}CLAIM{{/code}}, {{code}}SCENARIO{{/code}})
--  define *what* something is in a stable sense.
--* Version entities (e.g. {{code}}CLAIM_VERSION{{/code}}, {{code}}SCENARIO_VERSION{{/code}})
--  define *how that thing looked at a given point in time*.
--
--All reasoning (e.g. verdicts, review actions) is attached to **versions**, never to
--mutable identities.
--
------
--
--= 5.1 Core entities and versioning pattern =
--
--(% class="wikitable" %)
--| **Logical concept** | **Identity entity** | **Version entity** | **Notes**
--| Claim (what people argue about) | {{code}}CLAIM{{/code}} | {{code}}CLAIM_VERSION{{/code}} | Claim text, phrasing, and metadata live in {{code}}CLAIM_VERSION{{/code}}. The identity {{code}}CLAIM{{/code}} stays stable across rephrasings.
--| Scenario (interpretive frame) | {{code}}SCENARIO{{/code}} | {{code}}SCENARIO_VERSION{{/code}} | A SCENARIO belongs to a CLAIM. Its versions capture evolving definitions, assumptions, and boundaries.
--| Evidence (source / datapoint) | {{code}}EVIDENCE{{/code}} | {{code}}EVIDENCE_VERSION{{/code}} | Identity of a source vs. specific extractions / updates over time.
--| Verdict (assessment) | {{code}}VERDICT{{/code}} | {{code}}VERDICT_VERSION{{/code}} | A VERDICT is defined per SCENARIO; VERDICT_VERSION captures the history of assessments.
--| Scenario–Evidence link | {{code}}SCENARIO_EVIDENCE_LINK{{/code}} | {{code}}SCENARIO_EVIDENCE_LINK_VERSION{{/code}} | Links bind scenario versions to evidence versions with relevance & direction.
--| Claim cluster (semantic group) | {{code}}CLAIM_CLUSTER{{/code}} | – | Groups semantically related claims; mainly for discovery and navigation.
--
--Key design decisions:
--
--* A {{code}}CLAIM{{/code}} belongs to exactly one {{code}}CLAIM_CLUSTER{{/code}}.
--* A {{code}}SCENARIO{{/code}} belongs to exactly one {{code}}CLAIM{{/code}}
--  (scenarios live at the *claim* level, not per individual phrasing).
--* Verdicts and Scenario–Evidence links are always attached to **versions**:
--* {{code}}SCENARIO_VERSION{{/code}} +
--{{code}}EVIDENCE_VERSION{{/code}} →
--{{code}}SCENARIO_EVIDENCE_LINK_VERSION{{/code}}
--* {{code}}SCENARIO_VERSION{{/code}} →
--{{code}}VERDICT_VERSION{{/code}}
--
--This ensures that when a Scenario or Evidence changes, old verdicts and links
--remain intact as historical records and can be revisited.
--
------
--
--= 5.2 Core Data Model ERD (expanded, versioned) =
--
--The following Mermaid ER diagram shows the main entities and their relationships.
--The convention is that fields ending in {{code}}Id{{/code}} are primary keys,
--and fields with {{code}}...IdFk{{/code}} are foreign keys.
--
--{{comment}} Core Data Model ERD (Mermaid, from /Specification/Diagrams/Data Model) {{/comment}}
--{{include document="FactHarbor.Playground.Core Data Model ERD Page (from Specification chat).WebHome"/}}
--
--**Important points:**
--
--* Scenarios and Evidence are **linked via their versions**
--  ({{code}}SCENARIO_VERSION{{/code}} and {{code}}EVIDENCE_VERSION{{/code}}).
--* Verdicts are **per ScenarioVersion** and stored in {{code}}VERDICT_VERSION{{/code}}.
--* {{code}}CLAIM_CLUSTER{{/code}} is shared across diagrams; it is shown here and in the Data Use / Review model.
--
--All version entities are immutable: once created, they are never changed, only
--superseded by newer versions.
--
------
--
--= 5.3 Data Use & Review ERD (expanded, versioned) =
--
--The **Data Use** model captures who does what with which versioned data:
--
--* Users (including technical users)
--* Roles and role assignments
--* Review actions on versioned entities
--
--{{comment}} Data Use ERD (Mermaid, from /Specification/Diagrams/Data Use ERD) {{/comment}}
--{{include document="FactHarbor.Playground.Data Use ERD Page (from Specification chat).WebHome"/}}
--
--Notes:
--
--* Most roles (READER, CONTRIBUTOR, TRUSTED_CONTRIBUTOR, REVIEWER, MODERATOR,
--  SYSTEM_ADMIN, FEDERATION_OPERATOR, FEDERATION_ADMIN, …) are represented as rows
--  in {{code}}ROLE{{/code}}.
--* {{code}}TECHNICAL_USER{{/code}} captures strictly technical accounts (API keys,
--  node-to-node federation agents, batch jobs). All other roles can, in principle,
--  be held by both human and technical users where appropriate.
--* A {{code}}READER{{/code}} normally does **not** perform REVIEW_ACTIONs, while
--  roles like REVIEWER, TRUSTED_CONTRIBUTOR, MODERATOR, and some federation roles
--  do.
--
------
--
--= 5.4 Versioning and re-evaluation behavior =
--
--This section ties the data model to the re-evaluation logic
--(described in more detail in the Versioning and Automation chapters).
--
--* When a new {{code}}EVIDENCE_VERSION{{/code}} is created:
--* All related {{code}}SCENARIO_EVIDENCE_LINK_VERSION{{/code}} entries referencing
--    that evidence version are candidates for re-assessment.
--* Related {{code}}VERDICT_VERSION{{/code}} entries may become **outdated** and
--    are queued for re-evaluation.
--
--* When a new {{code}}SCENARIO_VERSION{{/code}} is created:
--* It may inherit some links from earlier scenarios, or start empty depending
--    on the change classification (cosmetic vs. conceptual).
--* All verdicts for that scenario are recalculated and stored as new
--{{code}}VERDICT_VERSION{{/code}} entries.
--
--* REVIEW_ACTIONs are always attached to the **exact version** that was seen by
--  the reviewer. This preserves a faithful audit trail if data later changes.
--
--* In a federated environment, nodes can choose:
--* which identity entities to replicate (CLAIM, SCENARIO, EVIDENCE, VERDICT)
--* which versioned entities to replicate (e.g. only accepted VERDICT_VERSIONs,
--    only EVIDENCE_VERSIONs above a reliability threshold, etc.)
--
------
--
--= 5.5 Behavioral Notes =
--
--== 5.5.1 Late-Arriving Evidence ==
--
--New evidence versions can make existing verdicts **outdated** and may trigger
--re-evaluation cascades. This is handled by the global trigger and automation
--architecture (see the Versioning & Automation chapters).
--
--== 5.5.2 Scenario Evolution ==
--
--Scenario changes create new SCENARIO_VERSIONs; dependent verdicts and
--Scenario–Evidence links are re-assessed. Old versions remain available for
--historical comparison and reproducibility.
--
--== 5.5.3 Federation ==
--
--Federated nodes can replicate subsets of the graph, including:
--
--* Claims and Scenarios of local interest
--* Evidence metadata (without full content)
--* Verdict lineages used for local decision-making
--
--Federation-specific entities (such as {{code}}FEDERATION_NODE{{/code}},
--replication logs, and trust rules) are described in the Federation &
--Decentralization chapter and build on top of the core data model defined here.

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