Following the overall architecture definition from task 2.1, this task will further specify and implement multidomain, cross-plane slice and service orchestrator. On one side, the SliceNet Orchestrator will empower cross-plane/vertical coordination of control, service and data planes to achieve system-level self-organised slicing control and slice management operation. On the other side, it will also coordinate multiple horizontal administrative domains to deliver the contracted end-to-end slice with the required characteristics. This task will also address the need to extend the legacy service & resources catalogues and inventories in order to integrate the slice concept as a new managed entity. For this the task 7.1 also aims the design and implementation of the slice and service catalogue and inventory that will provide all the required information about the slices, services and resources for the whole SliceNet architecture components.