Abstract: An exemplary system is adapted for designing card processing models, generating code for card processing systems from the models, testing the code, and executing card processing systems. A model content repository stores elements for card processing models. An integrated development environment allows users to access the model content repository and design card processing models. A deployment manager is adapted to compile and test card processing models that have been defined and stored in the model content repository. The compiled code is executed in a platform runtime environment. Information that is collected from an executing card processing system is communicated to the integrated development environment where the information may be presented to a user.

Abstract: An exemplary system is adapted for developing, testing, and operating payments and funds transfer systems, such as, for example, issuing systems, acquiring systems, and/or payment networks/systems. A model content repository stores elements for system models. An integrated development environment allows users to access the model content repository and design models. A deployment manager is adapted to compile and test models that have been defined and stored in the model content repository. The compiled code is executed in a platform runtime environment. Information that is collected from an executing system is communicated to the integrated development environment where the information may be presented to a user.

Abstract: A computer implemented system and method for creating and using an order preserving hash function are provided. In an illustrative implementation, a computing environment comprises a data store having data stored in a selected order (e.g., ascending alphabetical listing) and one more instructions sets providing instructions to the computing environment to process the data found in the data store according to a selected order preserving hash. The order preserving hash can comprise one or more instructions to process data such that native data stored in the data store can act as input to an order preserving hash algorithm to produce encoded output data. The encoded output data can comprise a numerical index that is representative of the selected order (e.g., ascending alphabetical listing). In the illustrative implementation, the order-preserving hash algorithm can utilize one or more arithmetic coding schemes to encode the native data and to generate the numerical index.

Abstract: A transaction payment processing system and methods are provided. In an illustrative implementation, a transaction payment processing environment comprises a service bus environment operating one or more services/applications. The service bus environment further comprises a service bus environment program providing one or more instructions to the service bus environment to manage the cooperating service bus environment services/applications. The service bus environment services/applications are operable to perform various functions and operations including but not limited to transaction authorization, fraud detection, regulatory compliance, and voice/telephony transaction payment processing. Further, the transaction payment processing environment comprises one or more transaction payment processing engines operable to perform functions representative of transaction card and transaction account linkage using directed acyclic graphs, and zero sum accounting for transaction payment processing.