Systemic Pattern‑Structural Analysis (SMSA) reconstructs functional architecture by deriving structural necessity from the formal properties of a system rather than from narrative or analogy‑based interpretation. The method integrates pattern recognition, structural derivation, and systemic logic to identify organisational principles that emerge from the interaction of system elements. Recurrent configurations are treated as indicators of functional constraints, enabling coherent reconstruction even when evidence is incomplete or uneven. Functional plausibility is evaluated through mechanical viability, organisational feasibility, and relational consistency. SMSA provides a rigorous, transferable framework for analysing distributed, relational, and network‑based systems across cultural and disciplinary contexts. It complements discipline‑bound interpretation with a process‑oriented logic in which systems are understood through the functional interactions that generate their structure.