32 خطوط
1.8 KiB
Markdown
32 خطوط
1.8 KiB
Markdown
# Domain Model
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## Core aggregates
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- Organization owns users, teams, subscriptions, taxonomy, content, assignments, and analytics.
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- Course owns ordered CourseVersions. A published version is immutable; editing forks a draft.
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- CourseVersion owns Modules, Lessons, Blocks, Assessments, and version-aware taxonomy mappings.
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- Assignment targets learners, teams, or rules and references the assigned CourseVersion.
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- LearningAttempt records delivery state against the assigned version.
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## Taxonomy
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- TaxonomyType is organization-defined and has a stable identifier and semantic key.
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- TaxonomyNode has a stable identifier, optional parent, status, code, metadata, and revision history.
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- TaxonomyRelationship supports typed non-tree relationships without requiring a graph database.
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- ContentTaxonomyMapping links a versioned content object to a node with mapping type, relative weight, source, and confirmation state.
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- Inherited mappings are resolved, never copied to every descendant.
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Circular hierarchies are invalid. Referenced nodes are archived rather than deleted.
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## Evidence and capability
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- EvidenceRecord is immutable and traces learner, taxonomy node, origin, type, normalized value, strength, course version, mapping snapshot, and occurrence time.
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- ScoringModel versions all calculation policies.
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- CapabilityScore is the current projection; CapabilitySnapshot preserves history.
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- SkillExpectation defines an expected level for a learner, team, role, or job family.
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- SkillGap exists only where an expectation exists.
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- ContentCoverageMetric separates learning, practice, assessment, scenario, and evidence coverage.
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Capability score is a strength/recency-weighted evidence projection. Confidence separately reflects effective evidence volume, strength, recency, diversity, and consistency. Exposure alone cannot yield high confidence.
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