The Sp Of ATM Bases On XFS

WOSA / XFS extension is based on WOSA financial services (Window Open System Architecture / Extensions for Financial Services), it extends WOSA software architecture for the global financial industry Early on, there is no standard to follow for the financial electronic equipment, financial equipment, software manufacturers and hardware are provided by the manufacturer. This equipment must be maintained by the original manufacturers, other manufacturers can't take it over. Sp(service provide) which is based on WOSA / XFS through a unified hardware and software decoupling, the two are seamlessly connected.Throgh ATM standardization, ATM's software and hardware can be upgrade and maintained independently,the problem of hard to be maintained is effectively solved.In this paper, the background of XFS protocol, content, application status were introduced, and then use C + + to implement the sp base on XFS. In this paper, the overall structure of the sp is described, and then the various modules of this system are described. The system is hierarchical implementation, including the following layers: interface layer (ATM control procedures calls this layer), the platform core layer (Interface layer calls this layer,it is responsible for such as order scheduling, logging, etc.), the core layer devices (It is responsible for class relevant, but hardware-independent function), SP-layer device (for implementing specific hardware-related functions).The system is layered to achieve, only the SP-layer is hardware-related. Therefore, the need to develop different types of hardware, through modifying SP layers can be achieved, which can be simple, fast and first to develop new sp. In this paper,I take cdm for example,describes the development of specific sp.The system is fully in line with XFS specification, can be called by any ATM control procedures which is in line with XFS. Any hardware module can be installed together with it's sp on third-party ATM, and runs correctlly, so that the maintainability of ATM is greatly improved.