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eTOM L1–L3 Capability Reference

This section provides a comprehensive reference mapping of eTOM processes from Level 1 domains down through Level 2 capabilities to Level 3 tasks. It covers all processes relevant to the two primary telco operational flows: Lead-to-Cash (Fulfilment) and Trouble-to-Resolve (Assurance), plus Billing/Revenue Management and the Strategy, Infrastructure & Product processes that define what gets operated.

Each row maps a specific L3 process task to its parent L2 capability, the typical system domain (BSS, OSS, or Shared), the primary owning function, and examples of generic supporting systems. This table is designed for use in architecture reviews, vendor evaluations, process-to-system mapping, and training.

Source: TM Forum eTOM (GB921)

This mapping is based on the TM Forum enhanced Telecom Operations Map (eTOM), published as GB921 within the TM Forum Frameworx suite. The eTOM hierarchy used here reflects the standard Operations matrix (Fulfilment × Assurance × Billing crossed with CRM × SM&O × RM&O × S/PM) and the SIP (Strategy, Infrastructure & Product) area. Process numbering follows eTOM conventions. Descriptions are written in plain English for training use.

How to Read This Table

The table is organised by eTOM Level 1 domain. Within each domain, Level 2 capabilities are grouped with their Level 3 tasks listed beneath. The "Typical System Type" column indicates whether the process is primarily served by BSS, OSS, or Shared systems. "Primary Owning Function" identifies the team or capability that owns the process. "Example Supporting Systems" lists generic system types (not vendor products) that typically implement or contribute to the process.

Operations — Fulfilment Processes

Fulfilment processes deliver what the customer ordered. They traverse the entire eTOM Operations matrix from CRM (commercial order capture) through SM&O (service orchestration) to RM&O (resource provisioning). These are the core Lead-to-Cash processes.

Fulfilment — CRM Layer

Fulfilment × CRM: Marketing, Selling & Order Handling (L1–L3)

eTOM L1 Domain	eTOM L2 Capability	eTOM L3 Task	Description	System Type	Primary Function	Example Systems
Fulfilment / CRM	Marketing Fulfilment Response	Determine Marketing Fulfilment Response	Assess customer response to campaigns and determine the appropriate next-best-action or follow-up	BSS	Marketing	Campaign Platform, CRM, Marketing Analytics
Fulfilment / CRM	Marketing Fulfilment Response	Issue Specific Marketing Information	Generate and deliver targeted marketing materials, promotions, and product information to qualified prospects	BSS	Marketing	Campaign Engine, Digital Channel Platform, Content Management
Fulfilment / CRM	Marketing Fulfilment Response	Track & Manage Fulfilment Response	Monitor campaign effectiveness, conversion rates, and manage the prospect engagement lifecycle	BSS	Marketing	Marketing Analytics, CRM, Campaign Platform
Fulfilment / CRM	Selling	Manage Prospect	Create and manage prospect records, track interactions across channels, and qualify leads into sales opportunities	BSS	Sales	CRM, Lead Management
Fulfilment / CRM	Selling	Qualify & Educate Customer	Assess customer needs, validate service availability at their location, and present relevant product offerings	BSS	Sales	CRM, CPQ, Product Catalog, Service Qualification
Fulfilment / CRM	Selling	Cross/Up Sell	Identify opportunities to offer additional or upgraded products to existing customers based on usage and eligibility	BSS	Sales	CRM, Product Catalog, Analytics, Recommendation Engine
Fulfilment / CRM	Selling	Manage Sales Negotiation	Handle pricing negotiations, custom deal approvals, discount authorisation, and contract terms for complex sales	BSS	Sales	CPQ, Deal Management, Contract Management
Fulfilment / CRM	Selling	Acquire Customer Data	Capture and validate customer identity, contact details, billing preferences, and regulatory compliance data (KYC)	BSS	CRM	CRM, Identity Verification, Document Management
Fulfilment / CRM	Order Handling	Determine Customer Order Feasibility	Check technical feasibility, credit status, product eligibility, and address serviceability before order submission	Shared	COM	COM, Credit Management, Service Qualification (OSS)
Fulfilment / CRM	Order Handling	Authorize Credit	Perform credit checks, set credit limits, and approve financial exposure for new or modified orders	BSS	Credit / Finance	COM, Credit Engine, External Credit Bureau
Fulfilment / CRM	Order Handling	Issue Customer Orders	Submit validated commercial orders to downstream service fulfilment systems for decomposition and execution	BSS	COM	COM, SOM (via TMF622)
Fulfilment / CRM	Order Handling	Track & Manage Customer Order Handling	Monitor order progress across all fulfilment stages, manage jeopardy conditions, and handle exceptions or escalations	BSS	COM	COM, Order Dashboard, SOM (status callbacks)
Fulfilment / CRM	Order Handling	Complete Customer Order	Confirm successful delivery of all order items, update product inventory, notify the customer, and trigger billing activation	BSS	COM	COM, Product Inventory, CRM, Billing
Fulfilment / CRM	Order Handling	Report Customer Order Handling	Generate order fulfilment performance reports including cycle times, fallout rates, and SLA compliance metrics	BSS	COM	COM, Reporting Platform, BI/Analytics

Fulfilment — SM&O Layer

Fulfilment × SM&O: Service Configuration, Activation & Testing (L1–L3)

eTOM L1 Domain	eTOM L2 Capability	eTOM L3 Task	Description	System Type	Primary Function	Example Systems
Fulfilment / SM&O	Service Configuration & Activation	Allocate Specific Service Parameters	Assign service-specific parameters (bandwidth profile, QoS class, SLA tier) based on CFS specifications from the service catalog	OSS	SOM	SOM, Service Catalog, Service Inventory
Fulfilment / SM&O	Service Configuration & Activation	Implement, Configure & Activate Service	Instantiate CFS and RFS instances in service inventory, push configuration to service platforms, and mark services as active	OSS	SOM	SOM, Service Inventory, Activation Platform
Fulfilment / SM&O	Service Configuration & Activation	Test Service End-to-End	Execute automated service testing to verify end-to-end functionality and performance before customer handover	OSS	SOM	SOM, Test Management, Service Quality Monitoring
Fulfilment / SM&O	Service Configuration & Activation	Issue Service Orders	Generate and route service orders to Resource Order Management for resource-level provisioning via catalog decomposition rules	OSS	SOM	SOM, ROM (via TMF641), Service Catalog
Fulfilment / SM&O	Service Configuration & Activation	Track & Manage Service Provisioning	Monitor service fulfilment progress across all dependent resource orders, manage dependencies and orchestration sequencing	OSS	SOM	SOM, Orchestration Engine, Order Dashboard
Fulfilment / SM&O	Service Configuration & Activation	Close Service Order	Confirm service activation is complete, update service inventory status, and propagate completion notification to upstream COM	OSS	SOM	SOM, Service Inventory, COM (via TMF641 callback)
Fulfilment / SM&O	Service Configuration & Activation	Report Service Provisioning	Generate service provisioning performance reports including activation times, failure rates, and SLA compliance	OSS	SOM	SOM, Reporting Platform, BI/Analytics
Fulfilment / SM&O	Service Testing	Design & Build Service Tests	Define test scenarios, acceptance criteria, and automated test scripts for each service type in the catalog	OSS	Service Testing	Test Management, Service Catalog, Test Automation
Fulfilment / SM&O	Service Testing	Perform Service Tests	Execute functional and performance tests on newly provisioned service instances against specification thresholds	OSS	Service Testing	Test Management, Service Quality Monitoring, Probes
Fulfilment / SM&O	Service Testing	Report & Manage Service Test Results	Record test results, manage re-tests on failure, and gate service activation on successful test completion	OSS	Service Testing	Test Management, SOM, Reporting Platform

Fulfilment — RM&O Layer

Fulfilment × RM&O: Resource Provisioning & Testing (L1–L3)

eTOM L1 Domain	eTOM L2 Capability	eTOM L3 Task	Description	System Type	Primary Function	Example Systems
Fulfilment / RM&O	Resource Provisioning	Allocate & Install Resource	Assign physical or logical resources (ports, VLANs, IP addresses, equipment) from resource inventory and schedule installation if physical	OSS	ROM	ROM, Resource Inventory, Field Workforce Management
Fulfilment / RM&O	Resource Provisioning	Configure & Activate Resource	Push configuration to network elements via activation adapters, activate resource instances on the network	OSS	ROM	ROM, Activation Platform, EMS/NMS, SDN Controller
Fulfilment / RM&O	Resource Provisioning	Test Resource	Verify resource-level connectivity, configuration correctness, and performance baseline before service-level testing	OSS	ROM	ROM, EMS/NMS, Network Test Tools
Fulfilment / RM&O	Resource Provisioning	Track & Manage Resource Provisioning	Monitor resource provisioning progress, manage dependencies between resource actions, and handle rollback on failure	OSS	ROM	ROM, Orchestration Engine, Resource Inventory
Fulfilment / RM&O	Resource Provisioning	Close Resource Order	Confirm resource activation is complete, update resource inventory records, and notify upstream SOM of completion	OSS	ROM	ROM, Resource Inventory, SOM (via TMF652 callback)
Fulfilment / RM&O	Resource Provisioning	Report Resource Provisioning	Generate resource provisioning performance reports including cycle times, failure rates, and capacity utilisation metrics	OSS	ROM	ROM, Reporting Platform, BI/Analytics
Fulfilment / RM&O	Resource Testing	Design & Build Resource Tests	Define resource-level test procedures, acceptance criteria, and automated test scripts per resource type	OSS	Resource Testing	Test Management, Resource Catalog, Network Test Tools
Fulfilment / RM&O	Resource Testing	Perform Resource Tests	Execute resource connectivity, configuration, and performance tests on newly provisioned or modified resources	OSS	Resource Testing	EMS/NMS, Network Test Tools, Probes
Fulfilment / RM&O	Resource Testing	Report & Manage Resource Test Results	Record resource test results, manage re-tests, and gate resource activation on successful completion	OSS	Resource Testing	Test Management, ROM, Reporting Platform

Fulfilment — Supplier/Partner Layer

Fulfilment × S/PM: Supplier/Partner Requisition Management (L1–L3)

eTOM L1 Domain	eTOM L2 Capability	eTOM L3 Task	Description	System Type	Primary Function	Example Systems
Fulfilment / S/PM	S/P Requisition Management	Issue S/P Requisitions	Generate and submit requisitions to suppliers or partners for resources or services needed to fulfil customer orders	Shared	Partner Management	Partner Management Platform, COM, SOM
Fulfilment / S/PM	S/P Requisition Management	Track & Manage S/P Requisitions	Monitor supplier/partner fulfilment progress, manage SLA compliance, and escalate delays	Shared	Partner Management	Partner Management Platform, SOM, SLA Management
Fulfilment / S/PM	S/P Requisition Management	Receive & Accept S/P Deliverables	Validate delivered resources or services from suppliers against requisition requirements and quality standards	Shared	Partner Management	Partner Management Platform, Resource Inventory, Quality Assurance

Operations — Assurance Processes

Assurance processes ensure that delivered services continue to work correctly. They cover the entire Trouble-to-Resolve flow: from customer-reported problems through service-level fault diagnosis to resource-level trouble resolution. Assurance also includes proactive quality monitoring and SLA management.

Assurance — CRM Layer

Assurance × CRM: Problem Handling & QoS/SLA Management (L1–L3)

eTOM L1 Domain	eTOM L2 Capability	eTOM L3 Task	Description	System Type	Primary Function	Example Systems
Assurance / CRM	Problem Handling	Create Customer Problem Report	Receive and log customer-reported issues from any channel (call centre, digital, retail, partner) as a trouble ticket	BSS	CRM / Service Desk	CRM, Trouble Ticket System (TMF621), Self-Service Portal
Assurance / CRM	Problem Handling	Isolate Customer Problem	Perform initial triage to determine if the issue is customer-side, service-side, or network-side; classify severity and priority	Shared	CRM / Service Desk	CRM, Trouble Ticket System, Service Quality Dashboard
Assurance / CRM	Problem Handling	Report Customer Problem	Provide status updates to the customer on investigation progress, expected resolution time, and any interim workarounds	BSS	CRM / Service Desk	CRM, Trouble Ticket System, Self-Service Portal, Notifications
Assurance / CRM	Problem Handling	Track & Manage Customer Problem	Manage problem lifecycle, SLA timers, escalation rules, handoffs between teams, and jeopardy management	BSS	CRM / Service Desk	CRM, Trouble Ticket System, SLA Management
Assurance / CRM	Problem Handling	Correct & Recover Customer Problem	Apply customer-visible fixes such as service credits, workarounds, or compensatory actions while technical resolution proceeds	BSS	CRM	CRM, Billing (for credits), Self-Service Portal
Assurance / CRM	Problem Handling	Close Customer Problem Report	Confirm resolution with the customer, close the trouble ticket, update knowledge base, and trigger satisfaction survey	BSS	CRM / Service Desk	CRM, Trouble Ticket System, Survey Platform
Assurance / CRM	Customer QoS/SLA Management	Monitor Customer QoS Performance	Track service quality metrics against individual customer SLA commitments, including availability, latency, and throughput	Shared	SLA Management	SLA Management Platform, Service Quality Monitoring, CRM
Assurance / CRM	Customer QoS/SLA Management	Manage Customer QoS/SLA Violations	Detect SLA threshold breaches, trigger proactive customer notifications, and initiate remediation or escalation workflows	Shared	SLA Management	SLA Management Platform, CRM, Event Correlation, Notifications
Assurance / CRM	Customer QoS/SLA Management	Report Customer QoS/SLA Performance	Generate SLA compliance reports for customers (contractual) and internal stakeholders (operational)	Shared	SLA Management	SLA Management Platform, Reporting Platform, Customer Portal
Assurance / CRM	Customer QoS/SLA Management	Apply QoS/SLA Penalties & Compensation	Calculate and apply contractual penalties (service credits, discounts, or rebates) when SLA commitments are breached	BSS	Billing / SLA Mgmt	Billing System, SLA Management Platform, CRM

Assurance — SM&O Layer

Assurance × SM&O: Service Quality & Problem Management (L1–L3)

eTOM L1 Domain	eTOM L2 Capability	eTOM L3 Task	Description	System Type	Primary Function	Example Systems
Assurance / SM&O	Service Quality Management	Monitor Service Quality	Continuously monitor CFS-level performance metrics (availability, latency, packet loss, throughput) against service specifications	OSS	Service Quality	Service Quality Monitoring, Service Inventory, Probes
Assurance / SM&O	Service Quality Management	Analyse Service Quality Degradation	Identify root causes of service degradation using alarm correlation, trend analysis, and cross-layer diagnostics	OSS	Service Quality	Service Quality Analytics, Event Correlation, AI/ML Analytics
Assurance / SM&O	Service Quality Management	Report Service Quality Performance	Generate service quality dashboards, trend reports, and executive summaries showing quality metrics over time	OSS	Service Quality	Service Quality Monitoring, Reporting Platform, BI/Analytics
Assurance / SM&O	Service Quality Management	Manage Service Quality Improvement	Define and execute improvement plans based on quality trend analysis, including capacity adjustments and configuration changes	OSS	Service Quality	Service Quality Monitoring, SOM, Change Management
Assurance / SM&O	Service Problem Management	Create Service Trouble Report	Automatically create service-level trouble reports from quality threshold breaches, correlated alarms, or escalated customer problems	OSS	Fault Management	Fault Management, Event Correlation, Service Inventory
Assurance / SM&O	Service Problem Management	Diagnose Service Problem	Perform service-level root cause analysis by correlating CFS degradation with underlying RFS and resource alarms	OSS	Fault Management	Fault Management, Service Inventory, Resource Inventory, Topology
Assurance / SM&O	Service Problem Management	Correct & Recover Service Problem	Execute service-level recovery actions such as failover, reroute, service reconfiguration, or manual intervention dispatch	OSS	Fault Mgmt / SOM	Fault Management, SOM, Service Inventory, Orchestration
Assurance / SM&O	Service Problem Management	Track & Manage Service Problem	Manage service trouble lifecycle, escalation timers, auto-resolution policies, and coordination with resource trouble management	OSS	Fault Management	Fault Management, Service Inventory, SLA Management
Assurance / SM&O	Service Problem Management	Close Service Problem Report	Confirm service is fully restored, update service inventory status, and propagate resolution to upstream customer problem handling	OSS	Fault Management	Fault Management, Service Inventory, Trouble Ticket System

Assurance — RM&O Layer

Assurance × RM&O: Resource Trouble, Performance & Data Collection (L1–L3)

eTOM L1 Domain	eTOM L2 Capability	eTOM L3 Task	Description	System Type	Primary Function	Example Systems
Assurance / RM&O	Resource Trouble Management	Create Resource Trouble Report	Log confirmed resource faults from network alarms, threshold breaches, or correlated events as formal trouble reports	OSS	NMS / Fault Mgmt	NMS, Alarm Management, Fault Management
Assurance / RM&O	Resource Trouble Management	Survey & Analyse Resource Trouble	Detect and analyse network alarms, events, and threshold breaches to identify resource-level faults	OSS	NMS / Fault Mgmt	NMS, EMS, Alarm Management, Event Correlation
Assurance / RM&O	Resource Trouble Management	Localise Resource Trouble	Pinpoint the specific network resource causing the fault using alarm correlation, topology analysis, and diagnostic tools	OSS	NMS / Fault Mgmt	NMS, Event Correlation, Resource Inventory, Network Topology
Assurance / RM&O	Resource Trouble Management	Correct & Recover Resource Trouble	Execute resource-level recovery: restart equipment, reconfigure ports, swap hardware, or dispatch field technicians	OSS	NMS / ROM	NMS, EMS, Field Workforce Management, Spare Parts Mgmt
Assurance / RM&O	Resource Trouble Management	Track & Manage Resource Trouble	Manage resource trouble lifecycle, escalation rules, technician dispatch coordination, and auto-healing policies	OSS	NMS / Fault Mgmt	Fault Management, Field Workforce Management, NMS
Assurance / RM&O	Resource Trouble Management	Close Resource Trouble Report	Confirm resource is restored, update resource inventory, and notify upstream service problem management of resolution	OSS	NMS / Fault Mgmt	NMS, Fault Management, Resource Inventory
Assurance / RM&O	Resource Performance Management	Monitor Resource Performance	Collect and monitor real-time performance metrics (CPU, memory, bandwidth, error rates) from network resources	OSS	NMS	NMS, Performance Monitoring, SNMP/Streaming Telemetry
Assurance / RM&O	Resource Performance Management	Analyse Resource Performance	Analyse performance trends, forecast capacity exhaustion, and identify degradation patterns requiring intervention	OSS	NMS / Analytics	NMS, Performance Analytics, Capacity Planning, AI/ML
Assurance / RM&O	Resource Performance Management	Report Resource Performance	Generate resource performance reports, capacity utilisation dashboards, and threshold compliance summaries	OSS	NMS	NMS, Reporting Platform, BI/Analytics
Assurance / RM&O	Resource Performance Management	Control Resource Performance	Apply corrective actions to resource configurations based on performance analysis (e.g., traffic rerouting, load balancing)	OSS	NMS	NMS, EMS, SDN Controller, Resource Inventory
Assurance / RM&O	Resource Data Collection & Processing	Collect Resource Data	Gather performance, fault, and usage data from network elements via polling (SNMP), streaming telemetry, or traps	OSS	Mediation	Mediation Platform, EMS/NMS, Streaming Collectors
Assurance / RM&O	Resource Data Collection & Processing	Process & Distribute Resource Data	Normalise, aggregate, filter, and route collected network data to consuming systems (billing, analytics, assurance)	OSS	Mediation	Mediation Platform, Data Pipeline, Event Bus
Assurance / RM&O	Resource Data Collection & Processing	Manage Resource Data Collection	Configure data collection schedules, protocols, polling intervals, and threshold definitions across the network	OSS	Mediation	Mediation Platform, NMS, Configuration Management

Assurance — Supplier/Partner Layer

Assurance × S/PM: Supplier/Partner Problem & Performance Management (L1–L3)

eTOM L1 Domain	eTOM L2 Capability	eTOM L3 Task	Description	System Type	Primary Function	Example Systems
Assurance / S/PM	S/P Problem Reporting & Management	Create S/P Problem Report	Report problems to suppliers or partners when root cause analysis identifies faults in partner-managed infrastructure or services	Shared	Partner Management	Partner Management Platform, Fault Management, B2B Gateway
Assurance / S/PM	S/P Problem Reporting & Management	Track & Manage S/P Problem Resolution	Monitor partner problem resolution progress against contractual SLAs, manage escalations, and track penalisation triggers	Shared	Partner Management	Partner Management Platform, SLA Management
Assurance / S/PM	S/P Problem Reporting & Management	Close S/P Problem Report	Confirm resolution from the supplier/partner, close the partner trouble ticket, and update internal service trouble records	Shared	Partner Management	Partner Management Platform, Fault Management
Assurance / S/PM	S/P Performance Management	Monitor S/P Performance	Track supplier/partner service quality against contracted SLAs using shared monitoring interfaces or partner-reported metrics	Shared	Partner Management	Partner Management Platform, SLA Management, Inter-Carrier Monitoring
Assurance / S/PM	S/P Performance Management	Report S/P Performance	Generate partner performance scorecards, SLA compliance reports, and supplier evaluation summaries	Shared	Partner Management	Partner Management Platform, Reporting Platform, SLA Management

Operations — Billing & Revenue Management

Billing processes convert delivered services into revenue. They encompass the complete revenue lifecycle: usage data collection, rating and charging, invoice generation, payment processing, and revenue assurance. In eTOM, billing is a vertical process area that primarily maps to BSS systems.

Billing & Revenue Management: Full L1–L3 Mapping

eTOM L1 Domain	eTOM L2 Capability	eTOM L3 Task	Description	System Type	Primary Function	Example Systems
Billing	Billing & Collections Management	Manage Customer Billing	Generate and present customer bills/invoices based on rated usage records, recurring subscriptions, and one-time charges	BSS	Billing	Billing System, Product Inventory, Invoice Renderer
Billing	Billing & Collections Management	Manage Customer Payments	Process customer payments across all payment channels and methods (direct debit, card, bank transfer, digital wallet)	BSS	Billing	Billing System, Payment Gateway, Bank Integration
Billing	Billing & Collections Management	Manage Customer Debt Collection	Identify overdue accounts and manage the collection lifecycle: dunning notices, payment plans, suspension, write-off, and agency referral	BSS	Billing / Finance	Billing System, Collections Management, CRM, Dunning Engine
Billing	Charging	Gather & Distribute Event Records	Collect raw usage events (CDRs, xDRs) from mediation and route them to the charging engine for rating	BSS	Billing	Mediation Platform, Charging Engine, Event Pipeline
Billing	Charging	Guide & Rate Event Records	Apply tariff plans, pricing tiers, and rating rules to transform raw usage events into rated charge records	BSS	Billing	Charging Engine, Rating Engine, Product Catalog (pricing rules)
Billing	Charging	Apply Pricing, Discounting & Adjustments	Apply discounts, promotions, loyalty rewards, service credits, and manual adjustments to customer charges	BSS	Billing	Charging Engine, Product Catalog, Loyalty Platform, Billing System
Billing	Revenue Assurance	Detect Revenue Leakage	Identify gaps between billable events and actual charges through cross-system reconciliation of mediation, rating, and billing records	BSS	Revenue Assurance	Revenue Assurance Platform, Billing System, Mediation
Billing	Revenue Assurance	Manage Revenue Assurance Cases	Investigate and resolve identified leakage or overcharging cases, track root causes, and implement corrective actions	BSS	Revenue Assurance	Revenue Assurance Platform, Billing System, Analytics
Billing	Revenue Assurance	Report Revenue Assurance	Generate revenue assurance reports showing leakage rates, recovery metrics, and trend analysis for management review	BSS	Revenue Assurance	Revenue Assurance Platform, Reporting Platform, BI/Analytics
Billing	Balance Management	Manage Prepaid Balance	Real-time balance management for prepaid customers: top-ups, decrements, threshold notifications, and expiry handling	BSS	Billing	Balance Management, Online Charging System (OCS), Self-Service Portal
Billing	Balance Management	Manage Postpaid Balance	Track postpaid customer usage against credit limits, manage spend thresholds, and send usage notifications	BSS	Billing	Balance Management, Billing System, Notifications, Self-Service Portal
Billing	Balance Management	Manage Loyalty & Rewards Balance	Track, manage, and reconcile loyalty points, rewards accrual, and redemption across customer accounts	BSS	Loyalty / Billing	Loyalty Platform, Balance Management, CRM

Strategy, Infrastructure & Product (SIP)

SIP processes define what gets operated. While Operations processes handle day-to-day execution, SIP processes handle the design, planning, and lifecycle management of products, services, and resources. These "build" processes run on a longer cadence (weeks to months) and are essential for understanding how new products and services come into existence.

Why SIP Matters for Architecture

Many architects focus exclusively on Operations processes and overlook SIP. But SIP processes like "Product & Offer Portfolio Planning" and "Service Capability Delivery" define how new catalog entries are created, how service specifications are designed, and how resource types are onboarded. Without SIP, Operations has nothing to operate.

Marketing & Offer Management

SIP — Marketing & Offer Management (L1–L3)

eTOM L1 Domain	eTOM L2 Capability	eTOM L3 Task	Description	System Type	Primary Function	Example Systems
SIP / Marketing	Market Strategy & Policy	Gather & Analyse Market Information	Collect competitive intelligence, market research, customer insights, and technology trends to inform commercial strategy	BSS	Strategy / Marketing	Market Research, Analytics Platform, CRM, BI/Analytics
SIP / Marketing	Market Strategy & Policy	Establish Market Strategy	Define market positioning, target customer segments, competitive differentiation, and go-to-market approach	BSS	Strategy / Marketing	Strategic Planning Tools, CRM, Analytics
SIP / Marketing	Market Strategy & Policy	Manage Market Segments	Define, maintain, and refine customer segmentation models for targeted product design, marketing, and pricing	BSS	Marketing	CRM, Analytics Platform, Campaign Platform
SIP / Marketing	Product & Offer Portfolio Planning	Gather & Analyse Product Portfolio	Assess current product portfolio performance, identify underperforming products, market gaps, and retirement candidates	BSS	Product Management	Product Catalog, Analytics, Revenue Reporting, BI/Analytics
SIP / Marketing	Product & Offer Portfolio Planning	Manage Product Portfolio Lifecycle	Govern product introduction, modification, sunset, and retirement across the entire portfolio with formal lifecycle states	BSS	Product Management	Product Catalog, Product Lifecycle Management
SIP / Marketing	Product & Offer Portfolio Planning	Define New Product Offerings	Design new product offerings including structure, pricing, bundling rules, eligibility criteria, and channel availability	BSS	Product Management	Product Catalog, CPQ, Pricing Engine
SIP / Marketing	Product & Offer Capability Delivery	Develop Product Business Processes	Design and implement the business processes needed to sell, fulfil, bill, and support new products across all systems	Shared	Product Mgmt / IT	Process Management, COM, SOM, Billing, Test Management
SIP / Marketing	Product & Offer Capability Delivery	Manage Product Offering Deployment	Deploy new product offerings to production catalogs, validate across all channels, and certify readiness for sales	BSS	Product Management	Product Catalog, CPQ, Digital Channels, Test Management

Service Development & Management

SIP — Service Development & Management (L1–L3)

eTOM L1 Domain	eTOM L2 Capability	eTOM L3 Task	Description	System Type	Primary Function	Example Systems
SIP / Service	Service Strategy & Planning	Gather & Analyse Service Information	Assess current service portfolio, service performance trends, technology evolution, and customer demand patterns	OSS	Service Architecture	Service Catalog, Service Quality Analytics, Technology Radar
SIP / Service	Service Strategy & Planning	Define New Service Specifications	Design new CFS and RFS specifications including decomposition rules, parameters, dependencies, and reuse patterns	OSS	Service Architecture	Service Catalog, Service Design Tool, Resource Catalog
SIP / Service	Service Capability Delivery	Manage Service Design & Build	Implement and test new service specifications in the service catalog, orchestration workflows, and activation adapters	OSS	Service Architecture	Service Catalog, SOM, Test Management, Activation Platform
SIP / Service	Service Capability Delivery	Manage Service Deployment	Deploy new service specifications to production catalogs, validate end-to-end fulfilment paths, and certify for operational use	OSS	Service Architecture	Service Catalog, SOM, Test Management

Resource Development & Management

SIP — Resource Development & Management (L1–L3)

eTOM L1 Domain	eTOM L2 Capability	eTOM L3 Task	Description	System Type	Primary Function	Example Systems
SIP / Resource	Resource Strategy & Planning	Gather & Analyse Resource Information	Assess current resource inventory, capacity utilisation, technology lifecycle status, and vendor roadmaps	OSS	Network Planning	Resource Inventory, Capacity Planning, Technology Radar
SIP / Resource	Resource Strategy & Planning	Plan Resource Requirements	Forecast resource needs based on service demand projections, growth plans, and technology refresh cycles	OSS	Network Planning	Capacity Planning, Resource Inventory, Demand Forecasting
SIP / Resource	Resource Capability Delivery	Manage Resource Design & Build	Implement new resource types, network topology changes, and activation templates in the resource catalog and NMS	OSS	Network Engineering	Resource Catalog, Network Design, EMS/NMS
SIP / Resource	Resource Capability Delivery	Manage Resource Deployment	Deploy and commission new network resources, update resource inventory, and validate operational readiness	OSS	Network Engineering	Resource Inventory, EMS/NMS, Field Workforce Management

SIP — Infrastructure & Technology Governance

Infrastructure and technology governance processes define how BSS/OSS platforms are managed as technology assets — covering integration standards, API governance, data platform strategy, and shared infrastructure. These processes are often neglected in BSS/OSS architecture discussions, but they directly constrain what the operational processes can achieve.

SIP — Infrastructure & Technology Governance

L1 Domain	L2 Capability	L3 Task	Description	System Type	Primary Function	Example Systems
SIP / Infrastructure	API & Integration Governance	Define API Standards & Contracts	Establish API design standards (TMF Open API compliance), versioning policies, and contract-first development requirements across all BSS/OSS components	Shared	Enterprise Architecture	API Gateway, API Developer Portal, Schema Registry
SIP / Infrastructure	API & Integration Governance	Manage API Lifecycle	Track API versions across all BSS/OSS components, manage deprecation schedules, and enforce backward compatibility requirements	Shared	Integration Architecture	API Management Platform, Service Mesh, API Catalog
SIP / Infrastructure	API & Integration Governance	Manage Event Schema Standards	Define event schema standards (TMF688), maintain schema registry for all domain events, and enforce schema evolution rules (forward/backward compatibility)	Shared	Integration Architecture	Schema Registry, Event Catalog, Event Bus Platform
SIP / Infrastructure	Data Platform Governance	Define Data Architecture Standards	Establish enterprise data model alignment with TM Forum SID, define data ownership per domain, and maintain data catalog across all BSS/OSS components	Shared	Data Architecture	Data Catalog, Metadata Management, Master Data Management
SIP / Infrastructure	Data Platform Governance	Manage Analytics & Reporting Platform	Govern shared analytics infrastructure: data lake/warehouse ingestion, transformation pipelines, BI tooling standards, and reporting access controls	Shared	Data Architecture	Data Lake/Warehouse, ETL/ELT Platform, BI Tools
SIP / Infrastructure	Platform & Cloud Governance	Manage Shared Platform Services	Govern shared infrastructure services used by all BSS/OSS components: container orchestration, observability stack, IAM, and secret management	Shared	Platform Engineering	Kubernetes, Service Mesh, Observability Stack, IAM
SIP / Infrastructure	Platform & Cloud Governance	Manage Deployment & Release Standards	Define CI/CD standards, deployment pipeline governance, environment management, and release coordination across BSS/OSS components	Shared	Platform Engineering	CI/CD Platform, Container Registry, GitOps Tools

Key Observations from the Mapping

BSS/OSS Boundary Is Clear at L3

At Level 3, the BSS/OSS boundary becomes unambiguous. CRM-layer tasks (Order Handling, Problem Handling, Billing) are firmly BSS. SM&O tasks (Service Configuration, Service Quality) and RM&O tasks (Resource Provisioning, Resource Trouble) are firmly OSS. The Shared system type appears at integration points — particularly order feasibility checks and SLA management — where BSS must query OSS for technical information.

Fulfilment Follows a Clear Chain

The Fulfilment vertical follows a strict chain: CRM Layer (Order Handling in COM) → SM&O Layer (Service Configuration in SOM) → RM&O Layer (Resource Provisioning in ROM). Each layer generates orders for the next. This chain is the backbone of the Lead-to-Cash flow and maps directly to TMF622 → TMF641 → TMF652.

Assurance Flows in Reverse

Assurance processes flow in the opposite direction from Fulfilment. Resource alarms bubble up from RM&O (Resource Trouble Management) to SM&O (Service Problem Management) to CRM (Problem Handling). Impact analysis translates resource faults into customer-visible service degradation. This reverse flow requires tight correlation between resource inventory, service inventory, and customer records.

SIP Processes Are Often Neglected

Many telco architectures systematically underinvest in SIP processes. Product Lifecycle Management, Service Design, and Resource Planning are often manual, spreadsheet-based activities. This creates a bottleneck: Operations processes are automated, but the catalog and design processes that feed them are not. This is why "time to market" remains slow even after BSS/OSS modernisation.

Coverage Summary

eTOM L1–L3 Coverage Summary

Process Area	L2 Capabilities	L3 Tasks	Primary System Domain
Fulfilment / CRM	3	14	BSS (COM, CRM, CPQ)
Fulfilment / SM&O	2	10	OSS (SOM)
Fulfilment / RM&O	2	9	OSS (ROM)
Fulfilment / S/PM	1	3	Shared (Partner Mgmt)
Assurance / CRM	2	10	BSS (CRM, Trouble Ticket)
Assurance / SM&O	2	9	OSS (Fault Mgmt, Service Quality)
Assurance / RM&O	3	13	OSS (NMS, Mediation)
Assurance / S/PM	2	5	Shared (Partner Mgmt)
Billing & Revenue	4	12	BSS (Billing, Charging)
SIP / Marketing	3	8	BSS (Product Mgmt)
SIP / Service	2	4	OSS (Service Architecture)
SIP / Resource	2	4	OSS (Network Planning)
SIP / Infrastructure	3	7	Shared (Enterprise Architecture, Platform)

This mapping covers 31 eTOM Level 2 capabilities decomposed into 108 Level 3 tasks across all process areas relevant to Lead-to-Cash, Trouble-to-Resolve, and Infrastructure Governance. This represents the core operational scope that any BSS/OSS architecture must address.

eTOM L1–L3 Capability Mapping — Key Points

The eTOM Operations matrix covers 3 vertical process areas (Fulfilment, Assurance, Billing) crossed with 4 horizontal layers (CRM, SM&O, RM&O, S/PM)
At Level 3, the mapping becomes unambiguous: each task maps to a clear BSS or OSS system domain
Fulfilment follows a strict chain: COM (CRM layer) → SOM (SM&O layer) → ROM (RM&O layer), matching TMF622 → TMF641 → TMF652
Assurance flows in reverse: resource alarms (RM&O) → service impact (SM&O) → customer notification (CRM)
Billing processes are entirely BSS-owned but depend on mediation data collected by OSS systems
SIP processes (Product, Service, Resource Design) define what Operations processes execute — they are the "build" side of the framework
SIP / Infrastructure processes (API governance, data platform, cloud governance) are cross-cutting and often neglected — but they constrain what operational processes can achieve
This reference covers 31 L2 capabilities and 108 L3 tasks — use it for vendor evaluation, gap analysis, and process-to-system mapping
No CSP implements all eTOM processes — select the subset relevant to your business and map those to your systems