Status: OUT
ChangeManager's DAG-aware update strategy, combined with Mediator centralization of Observer's distributed notifications, fully resolves the unexpected-updates liability for multi-subject dependency scenarios — transforming Observer from a pattern with inherent cascade risks into a safely composable notification mechanism.
ChangeManager resolves observer cascades only while the mediator itself doesn't become a monolith that reintroduces complexity
Depends on (SL): changemanager-mediator-observer-composition, observer-mediator-distribution-centralization-tradeoff