# Service Orchestration

Definition: The orchestration engine evaluates the request, determines the necessary resources, and initiates the automated workflows.It interacts with underlying controller components (e.g. 5G Core, Radios, Containerized controllers, NFV, SDN controllers) to provision and configure the required network functions and connectivity.

## Intended Audience: Service Designers

OpenSlice end-to-end (E2E) service orchestration framework is designed to manage and automate the entire lifecycle of services across multiple domains and technologies. For delivering, Network as a Service (NaaS) OpenSlice automates and manages the entire lifecycle of network services, from provisioning to monitoring and decommissioning, while ensuring seamless integration, operation, and delivery of services from the initial request to the final delivery, spanning all involved components and layers.

As next image depicts, service orchestrators follow some predefined workflows. OpenSlice end-to-end (E2E) service orchestrator follows some predefined workflows to manage a service lifecycle (They are described in BPMN language and included in our orchestration engine).

[![SO](./so/img01.png)](./so/img01.png)

This section provides a high level overview of the Service Orchestration process.





