Abstract: A security module (95) for a transaction processing system is disclosed. The transaction processing system includes a transaction manager (20) which runs in a first process and is responsive to transaction requests from one or more applications (10, Page_1.htm) and a service provider layer (30, 36, 37) adapted to relay transaction requests passed from said transaction manager to associated hardware (14) for execution. The security module is adapted to communicate with a supervisor application to receive and store application rights to execute transaction requests and is responsive to requests from the service provider layer to determine an application's right to execute a transaction request.

Abstract: A peripheral controller component (90) for a transaction processing system is disclosed. The transaction processing system includes a transaction manager (20) which runs in a first process and is responsive to transaction requests from a browser (80) adapted to run a web application, the application comprising one or more web pages (Page_1.htm, Page_2.htm), and a set of service provider modules (30, 37) which are adapted to relay transaction requests passed from the transaction manager to an associated hardware module (14) for execution. The peripheral controller component is adapted to be instantiated from a web page and includes means (96,98) for communicating transaction requests from the web application to the transaction manager.

Abstract: A hardware simulator (46′,100) for a transaction processing system (20,40) is disclosed. The transaction processing system is responsive to transaction requests (12) from an application (10). The simulator comprises a set of virtual hardware modules (46′) for simulating execution of transaction requests and a simulator tool (100). Each virtual hardware module is responsive to transaction requests relayed from the transaction processing system and is adapted to write the requests to an associated area of shared memory (200). The simulator tool is adapted to graphically represent a set of hardware devices, for example, an ATM. Each hardware device graphical representation (FIG. 7) is associated with an area of shared memory (200). The tool is adapted to monitor these areas of shared memory and to update a hardware device graphical representation in response to a transaction request being written to an area of shared memory associated with the graphical representation.