u/VOLTDS®

Network Control and Message Delivery System

u/VOLTDS (UNIX-based, Virtual On-Line Transaction Distributor System) is an integral part of the u/SWITCHWARE on-line system as it is responsible for message delivery. u/VOLTDS is a network control and transaction distribution software module that allows u/SWITCHWARE to communicate with any other node in the network, whether it’s an ATM, POS device, switch or an authorizing application.

u/VOLTDS handles all the overhead associated with coordinating communication requirements between u/SWITCHWARE and other nodes. It does this using a library of device drivers, with each driver associated with a supported communication protocol. For example, if a message is received from an ATM using Polled NCR, u/VOLTDS uses the appropriate driver to strip all communication-related characters from the message before passing it on to u/SWITCHWARE. The same driver is used to insert the proper protocol-related characters in the response to the ATM.

u/VOLTDS also functions as a high-performance framework for building business critical applications, and is particularly useful for developing on-line transaction processing (OLTP) applications. With its multiple network interfaces, the underlying network is masked from the application programmer. The programmer uses a standard set of message to send and receive functions that remains the same regardless of the communication protocol used in the network. As an example, this enables programmers to deploy applications as easily over TCP/IP as X.25

 

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