Definitionv1DF-242
Prerequisite relationship
a directed relationship between concepts where the dependent concept cannot be achieved without the prerequisite concept, characterized by necessity, asymmetry, and transitivity, and forming a directed acyclic graph structure
Why This Is a Definition
This definition explicitly names the term 'prerequisite relationship', states its genus (a type of directed relationship), and provides its differentia (necessity, asymmetry, transitivity) that distinguish it from other relationships. It also describes the structural property (directed acyclic graph) and explains why this relationship type is fundamental to learning and systems. The definition is precise enough to distinguish it from supporting relationships and provides the operational characteristics that make it significant.