The WISL Bank Authorization Interface(WISL BA) is a group of computer programs that connect WATPOS(the Waterloo Point of Sale System) to bank authorization services. It provides for credit and debit authorization through the register/computer system on a centralized communication link rather than requiring separate devices with separate communication links per register.

- training

    Clerical users must be trained in the backroom procedures that provide for reconciliation with the bank authorization service.

- integration issues

    WISL BA has been designed to interface with any bank authorization service but since there is no standard for bank authorization transactions as with many other business transactions(EDI), the transaction formats and communication protocols are unique for each authorization service. The pinpad hardware which incorporates proprietary encryption for security, also requires a custom interface for each authorization service. Currently it is implemented only with the Bank of Montreal authorization service.

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