This document focuses on service discovery and orchestration for Compute IaaS. It defines automation required for orchestration that includes programmatic interfaces, interaction patterns, control interfaces, and lifecycle management.
The goals of this usage model are as follows:
• Define the basic elements of service orchestration for Compute IaaS.
• Apply the baseline work on the ODCA Usage Model: Service Catalog 1 and ODCA Usage Model: Standard Units of Measure for IaaS 2
• Identify the ODCA Usage Model: Service Catalog 1, API interface, key performance indicators (KPIs), and process for Service Orchestration. 
• Align with the ODCA Master Usage Models: Commercial Framework 3 and Compute IaaS (CIaaS) 4 to underpin cloud services provisioning. 
• Define a standard orchestration process for service integration which can be used as a reference model for improving interoperability between cloud providers and subscribers.