Orchestration defines scenarios as code, providing great flexibility at the cost of performance. There are several ways to arrange dependencies.

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Orchestration in software architecture involves a coordinating layer that manages inter-service communication for system-wide use cases. While it enhances debug capabilities and error handling, it can introduce communication overhead and dependency complexities. The orchestrator acts as a facade or mediator, coordinating service interactions and ensuring system consistency. It can simplify the addition of new use cases but complicate service restructuring. Different approaches like SPI and Hierarchy can mitigate some of the challenges.