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Frameworx Application: Service Inventory Management

Category: (1) TAM Application Type

Application Identifier: 6.2

Maturity Level: 4

Overview

Service Inventory Management represents the applications which contain and maintain information about the instances of services in a telecom organization.

A Service Inventory application may store and manage any or all of the following entities:

  • Customer facing service (CFS) instances, and their attributes
  • Resource facing service (RFS) instances, and their attributes

The Service Inventory may also store and manage service relationships:

  • The mapping of services (RFSes or CFSes) to other services and/or service components, the components being either:
  • Other child services
  • Resources and the resource domain managers used to implement the service, or
  • Services and resources in Supplier/Partner systems used to implement the service

This mapping is stored either intrinsically in the core Service Inventory, or discretely via Service-Supporting Resource Inventory applications.

Service Inventory may include the following relationship types between entity instances:

·         Realization by Composition – A mapping from a service to the child services and/or resources which specifically compose that service (e.g. the RFS instance or instances whose whole purpose is to implement a CFS, the assignable resources which realize an RFS). If a parent service is torn down, child objects with a Composition relationship are typically removed or reallocated (e.g. transitioned to spares inventory).

·         Realization by Aggregation – A mapping from a service to the services and/or resources which support this service in addition to other services. (e.g. a network access RFS which supports a number of different network CFSes). If a parent service is torn down, child objects with an Aggregation relationship are typically maintained as long as at least one other parent service still exists.

·         Dependency – A link between services and/or resources which is not strong enough to qualify as Composition or Aggregation, but where various Fulfillment, Assurance, and Change Management processes need to be aware of the relationship. Dependency relationships support the ability for change management processes to evaluate if a dependent service or resource may be impacted by changes to a specific service or resource.

Functionality

  • Service Inventory Information Model
  • Service Inventory Retrieval
  • Service Inventory Update Notifications
  • Service Inventory Update
  • Service-Supporting Resource Inventory
  • Service Inventory Reconciliation / Synchronization

Service Inventory Information Model

This function is the underlying information model for the service instances to be managed. The model serves as the foundation for the data itself and a guiding force for the definition and modelling of new services.

The Service Inventory Information Model should evolve in close coordination with the Service Specification data model, since the Service Inventory model must be able to store instances designed in accordance with all the service specifications defined via the Service Specification Management system.

Typically, the service provider would need to add a lot of detail concerning the services to be managed. The suggested approach for the service provider is to start with the TM Forum SID service model and then specialize the model for the specific services to be managed. The service model should indicate or point to the supporting component services and resources for each service (the SID model, in fact, does do this).

Service Inventory Retrieval

This function allows for client system to retrieve a part or all of the service inventory known to the Service Inventory Management system.

This feature may support the following selection criteria:

  • retrieval based on attribute matching

·         retrieval of only the object instances that have been modified after a provided date and time

·         retrieval based on relationship to a specific entity (e.g. all CFS instances supported by a specific RFS instance)

For the selected objects, this feature may allow the client OSS to specify what specific attributes and relationships shall be returned.

Service Inventory Update Notifications

This function entails the generation of inventory update notifications based on changes to the inventory known to the Service Inventory Management system. The notification types typically include object creation, object deletion, attribute value changes, and object relationship changes.

Single Entity Notifications – in this variation of the feature, each notification pertains to only one entity, e.g., an IP VPN service instance

Multi-entity Notifications – in this variation of the feature, a single notification may report on inventory changes for multiple entities (e.g. changes in any component services of a specific CFS).

Service Inventory Update

This function entails an external system requesting that the Service Inventory Management system update its inventory based on a provided collection of updates. The expectation is that the Service Inventory Management system update its inventory as requested, but no other side-effects are expected (e.g., creating a service in the network). This is a key point concerning this capability. The inventory update request can involve creation of an object, deletion of an object, or modification of an object’s attributes, or creation or deletion of an object’s relationships to other objects.

Supported Business Services

Consumed Contracts

  • Service Specification
  • Resource Inventory Management Systems

Exposed Contracts

  • Customer Order Management
  • Service Order Management
  • Service Problem Management
  • Service Performance Management
  • Service Level Agreement Management
  • Service Quality Monitoring
  • Revenue Assurance

(1) TAM Application Type Service Inventory Management

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Frameworx Domains (Horizontal)


This was created from the Frameworx 16.0 Model


Created from the TM Forum Model Frameworx 16.0.0 on 6/13/2016 at 22:30