processes required to support customers and to manage the business. It also includes the horizontal views of functionality across a service provider's organization, in operations and SIP. Lastly, enterprise is decomposed into seven Level 1 process groupings that represent the corporate processes common to most enterprises, like HR management, knowledge and research management, and SO on. Next Generation Mobile Communications Ecosystem Strategy, Infrastructure & Product Operations Infrastructure Product Operations Fulfillment Assurance Billing & Strategy & Lifecycle Lifecycle support & Revenue Commit Management Management Readiness Management Marketing & Offer Management Customer Relationship Management Service Development & Management Service Management & Operations Resource Development & Management Resource Management & Operations (Application, Computing and Network) (Application, Computing and Network) Supply Chain Development & Management Supplier/Partner Relationship Management Enterprise Management Strategic & Enterprise Enterprise Risk Enterprise Effectiveness Knowledge & Research Planning Management Management Management Financial & Asset Stakeholder & External Human Resources Management Relations Management Management Figure 8.19 TM forum eTOM. Reproduced from TM Forum [30] 8.3.4.2 Shared Information/Data Model (SID) The SID is designed for standard representation of information/data that can be shared and/or reused by OSS/BSS software applications provided by multiple vendors. It provides the concepts and principles needed to define a shared information model and drawings to provide a system view of the information and data. Together with eTOM, SID identifies business processes and information entities needed to support those business processes to achieve business objectives. The SID information model is shown in Figure 8.20 which consists of level 0 (information domains) and level 1 (business entities). SID maps the shared information into eight domains namely Market/Sales, Product, Customer, Service, R