Managing architecture or big node.js applications can be challenging. With orchestrator approach you can improve structure of your node.js application by decoupling different tasks on system. Let's see typical architecture after moving to orchestrator approach.So, central point of this system is orchestrator, and there is power of architecture this type. Orchestrator can decide to change order of actions in chain, can decide to add new steps to chain, can decide to remove some steps from chain, etc. All these actions should not hit any of tasks, because task don't know anything about who is sending data to task, or to who task is delivering data. That is completely dynamic.