Knowledge Graph
A graph-structured data model representing entities and the relationships between them. In product and PLM contexts, knowledge graphs model the network of decisions, requirements, components, and constraints that define a product — supporting queries about relationships and impact that relational databases cannot efficiently answer.
Why it matters
Relational databases store records. Knowledge graphs store relationships. Product memory, requirements traceability, and impact analysis all require relationship-aware queries that knowledge graphs answer natively.
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External References
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Cite this definition
Finocchiaro, Michael. “Knowledge Graph.” DemystifyingPLM PLM Glossary, 2026, https://www.demystifyingplm.com/glossary/knowledge-graph