The Architecture of Human Systems examines what happens when accuracy must survive across differentiated human positions, roles, representations, authorities, decisions, and consequences. A human system can be wrong without any part being completely wrong. An observation may be accurate. A report may follow procedure. A decision may be legitimate within the authority assigned to it. An action may be carried out correctly. And yet the final result may no longer be supported by the relation from which the process began. The problem is not always located in the parts. It can be located in what happened between them. Sandra Škrinjar develops a theoretical architecture for understanding how information is preserved, transformed, reduced, reframed, authorized, and carried forward as it passes through human systems. The book distinguishes local accuracy from structural accuracy and examines how source, status, scope, provenance, interpretation, representation, authority, decision, consequence, returning information, revalidation, and correction become structurally connected. The book also explores how systems can remain coherent, stable, documented, and functional while preserving inaccurate continuities; how formal authority can exceed epistemic support; how consequences can reveal earlier structural loss; and why correction may fail when returning information cannot reach the relation that produced the outcome. The analysis extends across groups, organizations, institutions, and society while maintaining a strict boundary against treating larger human structures as collective minds or enlarged human beings. The Architecture of Human Systems is part of the wider Psychology of Consciousness corpus and continues the theoretical line developed through the Law of Existence, the Law of Accuracy, Carbon Consciousness, Architecture of Consciousness, and Structural Alignment. This is a theoretical work. It does not present an empirically validated universal model of organizations, institutions, or societies, and it does not provide a universal diagnostic or scoring procedure.