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BillerXpert Administration ArchitectureThe diagram shows the data flow from the Admin Console to the front-end Applogics via the Open Client Library (OCL).OCL is a data format defined for NAS that is analogous to HTML in its function. Because the admin architecture uses OCL, you need either NAS 2.1 SP3 or 2.1 with the OCL patch for BillerXpert Admin Interface to work. The AppLogic passes the requests to the Data Access Layer, which in turn reads/writes information to the appropriate database - LDAP for membership and configuration data, and Oracle for transaction-related data. Data sent back to the Admin Interface AppLogic is presented to the user via NAS templates and finally displayed on the BillerXpert Admin Interface.
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