Once validated (see CompatibleOne Scheduler), the provisioning plan is transmitted to the CORDS Broker. The CORDS Broker is in charge of executing the provisioning plan for the production of an actual service instance to be delivered to the user. The broker will instantiate a service graph for the control of the contractual components described in the plan. During this operation the CORDS Broker will collaborate with various CompatibleOne service providers as required for the realization of the plan. This will be performed while respecting the different constraints and conditions expressly defined in the plan, such as an carrier selection, optimization, monitoring or accountancy.