# Object-Property-Context Format **Domain:** Knowledge Representation / Autobiographical Memory **Doc Type:** Research Concept Node **Maturity:** Specialized Research Model **Related:** [[Autobiographical Memory]], [[Episode Graph]], [[Personal Continuity Ontology]] --- ## Definition An **Object-Property-Context (OPC) format** represents an observed or remembered state using entities, their properties, and the context in which those properties were present. In autobiographical-memory systems, context commonly includes who, what, when, where, world state, action, and self relation. ## Architectural role OPC makes event state queryable and composable. It is not a universal memory standard; it is a useful research representation for connecting embodied interactions to structured reasoning and behavioral regularities.