Network Activation & Provisioning: How It Fits Together

The whole module on one page: from a service order to an active service, through orchestration, ROM, inventory, the EMS/NMS and controllers of each domain, down to the network. Select any part to see what it does and where it is covered.

Last updated 13 Oct 2026

This module follows a service order from the moment it reaches OSS to the point where the service is active in the network. Several parts work together to get it there: inventory records what the network holds and what is free; resource order management (ROM) turns the order into work for each network domain; activation and provisioning configures the network; the EMS/NMS and domain controllers manage the equipment in each domain; and multi-domain orchestration coordinates the domains when one order needs several of them.

The order arrives through order management, which spans the BSS/OSS line: commercial order management (COM) in BSS captures what the customer bought, and service order management (SOM) in OSS works out which services deliver it. Both are taught in Module 8. ROM is most often provided by an orchestration product or a domain controller rather than a separate system, although assigning resources against inventory usually stays in OSS fulfilment. The network the order acts on is covered in Module 9.

In this module

Choose a section to light what it covers; select any box for detail.

BSSWhere the order comes from

OSSService order, orchestration, resource order and activation

Inventory · beside the whole flow

ManagementEMS / NMS and domain controllers

NetworkPhysical and logical infrastructure

Dashed boxes are taught in other modules. Order management is COM in BSS and SOM in OSS; ROM is most often provided by an orchestration product or domain controller.

From service order to an active service across network domains. Select any box for what it does and where it is covered; choose a section from the list to light the parts it covers.

How the module is ordered

It works from the network up. It starts with how the network is recorded (10.1, 10.2), then the management layer over each domain (10.3), how ROM reaches it (10.4) and how resources are activated (10.5). Only then does it coordinate several domains (10.6).

Section 10.0 Key Takeaways

Network activation and provisioning combines inventory, ROM, activation, the EMS/NMS and domain controllers, and orchestration to turn a service order into an active service.
Inventory sits beside the whole flow: ROM reserves from it and discovery from the network keeps it true.
Each network domain (mobile, fixed access, IP, optical) has its own management layer, so activation reaches each one differently.
Multi-domain orchestration only matters when one order spans several domains; single-domain orders go straight to ROM and activation.