Status: IN
Template Method's Hollywood principle serves as the single inversion-of-control mechanism that unifies two otherwise independent architectural purposes across subsystems: in the event architecture, it enforces Observer's pre-notification consistency (correctness constraint), while in the creational infrastructure, it enables Factory Method's type-selection extensibility (extension point) — making inversion of control the shared mechanism for both safety and flexibility in the GoF system.
Hollywood principle independently serves correctness in event architecture and extensibility in creational infrastructure, plus system-level framework inversion
Depends on (SL): observer-template-method-safety-reinforces-hollywood-principle-universality, framework-inversion-instantiates-hollywood-principle