Cell biologist turned systems scientist who taught at Cal Poly Pomona for four decades. Troncale pioneered Systems Process Theory as an empirical, evidence-based approach to General Systems Theory — identifying Principal Systems Concepts, mapping formal Linkage Propositions between them, and cataloging over 110 isomorphies across scientific disciplines. His work evolved from SPT (1978) through SoSPT to SP3T, always insisting that systems science must be grounded in the documented processes of the natural sciences, not vague analogies.
Each node is a concept from SPT, queried live from Neo4j. Lines represent Linkage Propositions — formal, empirically verified causal relationships. Click any node to see its full definition and connected propositions. Drag to pan, scroll to zoom.
Troncale identified 8 PSC categories meeting 11 strict criteria: sufficiently abstract to be common to all systems, yet specific enough to correspond to experience. Process-oriented, transdisciplinary, phenomenologically based.
Isomorphies are cross-disciplinary pattern instances — empirical evidence that the same fundamental processes appear across physics, chemistry, biology, ecology, and social systems.