menters' biases. For example, some people might believe the CRM system should master customer information, where others might believe the billing system should be master. From an integration perspective, both views could be valid and either approach could likely be made to work. Returning to our hypothetical IIC, let us make some assumptions about which system owns which data. The table below illustrates some of the major data subject areas and the application owner for each. Keep in mind that this is a somewhat simplified view. In a true integration scenario, these subject areas would require further decomposition and assignment. Table 1. Major Data Subject Areas and Their Application Owner(s) Subject Area Functional Area System of Record Campaign Sales Force Automation SFA System Prospect Sales Force Automation SFA System Quote Sales Force Automation SFA System Customer Customer Relationship CRM System Management Customer Contacts Customer Relationship CRM System Management Customer Service Customer Relationship CRM System Location Management Contact History Customer Relationship CRM System Management Billing Account Billing Biller Payments Billing Biller Invoice Billing Biller Rates Billing Biller Billing Adjustment Billing Biller GL Journal Financials GL System Usage Mediation Mediation System Order Order Entry Work Order Order Management Order Manager Provisioning Plan Order Management Order Manager Chapter 6 - Integrating the OSS Platform Subject Area Functional Area System of Record Order Management Order Manager Network Element Inventory Management Network Inventory System Network Location Inventory Management Network Inventory System Circuit Inventory Management Network Inventory System Customer Inventory Service Configuration Network Inventory System Network Alarms Service Assurance Network Monitoring System Trouble Service Assurance Service Level Service Assurance Network Monitoring System Agreement Product Service Planning/Development CRM/Biller/Order Manager WHAT ARE THE TRANSACTIONS THAT FLOW AMONG 