QSF introduces a structure-preserving approach to comparative report analysis, decision assurance, and unresolved condition identification. Rather than accepting a governing report, implementation record, or conventional performance assessment as fully dispositive, QSF compares the reported conclusion against the operating conditions, dependencies, delayed effects, and mitigating factors that remain structurally active. This makes it possible to distinguish between what was reported as complete, successful, or resolved and what the preserved evidence actually supports.