One of the possibly unique strengths of Psi is its flexibility for various implementation scenarios: Psi could be used simply as a localisation tool to allow customised payments input, application and processing to and from the local clearing networks. Psi could be used as a central system for all banking payments, co-ordinating messages to and from multiple banking systems. In this case the system is responsible not only for processing customer payments, but also all deal related and intra-bank payments. All of the banking systems could be integrated into Psi and then the payments workflow centralised for maximum organisational efficiency. Psi could be used by ‘Hubbing? banks at the regional centre. Thus Psi would be used as a clearing centre allowing all of the banks in the region to have their payments automatically routed through the most efficient settlement nostros as well as setting up nostro utilisation rules on a regional rather than national basis. Browser based user interfaces make distribution of processing to the individual banks straightforward. Psi allows the setup of complex routing algorithms. The user can be assisted to select an optimum routing for the payments based on complex criteria that include, but are not limited to, conditions like transaction cost/price, speed of settlement & risk. All inward payments that cannot be processed for any reason automatically appear in the Investigations Module. Processing then is based on user defined templates. The highly sophisticated Nostro Management Module allows Nostro forecasting and on-line reporting. Reports can reflect different risk criteria and will help the position manager to make decisions taking into account user defined counter-party risk criteria. Nostro Reconciliation and Confirmation Matching modules help the bank to set up a flexible workflow, minimising settlement risk. For instance a deal payment could be available for release only after related confirmation matching is successful. Complex netting agreements can be quickly and easily implemented.