This analysis document provides the logical view of the proposed solution to meet the needs of the business requirements stated in ATIS/OBF LSR process. The primary sections include the use case and sequence diagrams, and informational model. The informational models are described using the Unified Modeling Language (UML). The UML provides the notation used within Volume II. Because of the level of complexities inherent in such an electronic ordering model, a unified modeling language tool has been used to develop this Volume II. A traceability matrix is included in Appendix A to map the details in Volume II to the Business Requirements defined in the LSOG. Some additional requirements are included in Volume II in order to accommodate fundamental aspects of ordering services via electronic inter-exchange. Volume II is not specific to any particular technology or protocol. If additional Volume I documents are developed, this Volume II may need to be expanded to address additional requirements. The OBF LSOP Technical Group maintains the UOM-LSR Volume II.