Policy-based Accounting Draft Sebastian Zander, Tanja Zseby GMD FOKUS - German National Research Institute for Information Technology Competence Center Global Networking (GloNe)

June 26-27, 2000AAAARCH Interim Meeting2 Policy-based Accounting Flexibility –Make accounting components configurable –Define common configuration interfaces for different types of accounting components (e.g. different meter types) –Re-Use existing components (MIBs, admission control functions) Efficiency –Control allocation of resources for accounting –Adapt accounting components to charging task (required parameters, meter accuracy) Interaction with Authorization –Use authorization data bases, messages, languages, etc. –Authorize accounting services (e.g. online charging, itemized invoice)

June 26-27, 2000AAAARCH Interim Meeting3 Reference Model & Building Blocks Billing Charging Pricing Policy User Specific Tariff Parameters Service specific Tariff Parameters Configuration Plane Accounting Policy Metering Policy Accounting Parameters Collection Parameters Metering Parameters Accounting Collecting Metering

June 26-27, 2000AAAARCH Interim Meeting4 Discrete Accounting Generic AAA server Rule based engine Application Specific Module Policy Events Accounting Service 5 Metering 6 Acct Data 3 2 Application Specific Module 5

June 26-27, 2000AAAARCH Interim Meeting5 Integrated Accounting Generic AAA server Rule based engine Application specific Module Policy Events Accounting/ Metering Service Provision 5 Acct Data 3 Service

June 26-27, 2000AAAARCH Interim Meeting6 Accounting in Authorization Model Agent Sequence –accounting setup with service setup via ASM –accounting policy requests from users supported Pull Sequence –accounting setup with service setup via ASM –accounting policy requests from users not supported Push Sequence –no connection between AAA and service equipment –3 possibilities: fixed accounting procedure ticket contains accounting policy ticket is used as digital coin, no accounting