The Next-Best-Action strategy framework is shipped with Pega Customer Decision Hub and provides the best practice for implementing enterprise-level next-best-action.
Starting in version 8.6, Pega Customer Decision Hub introduces the globally optimized strategy (GOS), which greatly increases the performance of strategy execution. GOS decreases the run time and memory usage of strategy execution in batch and real-time scenarios by wrapping your top-level (trigger or entry) strategy within a globally optimized strategy.
This capability is built into Next-Best-Action Designer and does not require any additional configuration. Triggers are automatically optimized as soon as you edit and save the Channels tab. You can also use GOS with your custom strategies. For more information, see Understanding globally optimized strategies.