Status: IN
SRP's actor-based framing can extend from its validated Observer-Mediator topology judgment toward the broader Facade-Mediator centralization spectrum: since Facade provides unidirectional subsystem simplification and Mediator provides multidirectional colleague coordination — both centralizing control but for different interaction topologies — SRP's principle of grouping by actor dependency offers a candidate criterion for selecting among centralized coordination patterns, where single-actor subsystem relationships suggest Facade's simplified interface and distinct coordinated actor dependencies suggest Mediator's bidirectional control.
SRP's actor-based decision criterion naturally extends from the Observer-Mediator choice to the full Facade-Mediator centralization spectrum
Depends on (SL): facade-mediator-centralization-spectrum, srp-resolves-decoupling-topology-choice