05 Knowledge Engine

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Raja Jeevan Kumar Maduri edited this page Aug 4, 2026 · 1 revision

05. Knowledge Engine & Canonical Ontology

Canonical Ontology (`backend/shared/ontology/canonical-ontology.yaml`)

Defines 40+ canonical entity types and semantic relationship edges:

Entity Types: BusinessCapability (CAP-), BusinessRequirement (REQ-), ArchitecturalDecision (ADR-), FunctionalSpecification (FRS-), TestCase (TC-), OperationalControl (CHG-, INC-).
Semantic Relationships: IMPLEMENTS, SATISFIES, VALIDATED_BY, DEPENDS_ON, CONFLICTS_WITH.

Neo4j Graph Adapter (`backend/services/knowledge_engine/neo4j_adapter.py`)

Identity-preserving graph node upserts (MERGE (e:Entity {id: $id})).
Multi-depth Cypher dependency traversals (query_neighbors).

Qdrant Vector Adapter (`backend/services/knowledge_engine/qdrant_adapter.py`)

Dense vector indexing and cosine similarity search (search_similar_chunks).

Graph Reasoning Engine (`backend/services/knowledge_engine/reasoning_engine.py`)

Automated semantic conflict detection (CONFLICTS_WITH).
Traceability gap finder identifying requirements missing test cases or capabilities.