Stand-In Payment Authorization for Unresponsive Issuer Banks
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Solution Overview
Problem
Existing payment authorization systems fail to authorize financial transactions when the issuer bank is unresponsive, leading to declined transactions, especially affecting high-spending cardholders.
Innovation Solution
A stand-in payment authorization system that includes a computing device storing account numbers of predesignated high-spending cardholders, allowing it to generate and transmit authorization responses when the issuer bank is unavailable, ensuring transactions are approved up to predefined monetary limits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the payment network uses a single centralized authorization process through the issuer bank, then the authorization process is simple and centralized, but the system reliability deteriorates when the issuer bank is unavailable
Solution Approach 1:
The patent introduces a stand-in authorization server as an intermediary component between the payment network and the issuer bank. This mediator receives authorization requests when the issuer bank is unavailable, performs alternative authorization logic (including checking spending thresholds and account balances), and returns authorization decisions. This resolves the contradiction by adding a intermediary layer that maintains system reliability without requiring complete system redesign.
Solution Approach 2:
The system performs preliminary actions by pre-calculating spending thresholds, pre-identifying high-spending cardholders, and pre-establishing authorization rules before the issuer bank becomes unavailable. The stand-in server has ready-made authorization criteria and account balance information prepared in advance, enabling rapid authorization decisions without requiring real-time communication with the issuer bank during the critical unavailability window.
2Ease of operation
If the payment network declines transactions when the issuer bank is unavailable, then the authorization process remains simple, but high-spending cardholders are negatively affected with mistaken declines
Solution Approach 1:
The patent applies local quality by implementing different authorization strategies for different cardholder segments. High-spending cardholders (e.g., Platinum, Gold, Silver levels) receive stand-in authorization with spending thresholds, while other cardholders receive standard decline handling. This localized differentiation maintains operational simplicity for the majority while providing enhanced reliability for valuable customers, resolving the contradiction between simplicity and accuracy.
3Reliability
If the payment network implements stand-in authorization for high-spending cardholders, then transaction approval accuracy improves, but the authorization system complexity increases
Solution Approach 1:
The patent segments the authorization system into distinct functional modules: a stand-in authorization server, an account management server, and integrated components. The system further segments cardholders into different categories (high-spending vs. standard) with different authorization rules. This segmentation allows the complex stand-in logic to be isolated in specific modules without complicating the entire authorization system, maintaining manageability while improving approval accuracy.
4Productivity
If the payment network contacts the issuer bank for every authorization request, then the authorization process is straightforward, but the response time increases when the issuer bank is slow or unavailable
Solution Approach 1:
The system dynamically switches between two authorization modes: normal mode (contacting issuer bank) and stand-in mode (using local authorization logic). The stand-in server monitors issuer bank availability and automatically transitions to alternative authorization processes when the bank becomes unresponsive. This dynamic adaptation maintains high authorization speed by avoiding delays from repeated failed attempts to contact the issuer bank, while ensuring continued availability through fallback mechanisms.
Data Source
AI summary
A computer-implemented method for performing a stand-in payment authorization is provided. The method is implemented using a stand-in payment authorization (SPA) computing device. The method includes storing account numbers of predesignated cardholders in an account file that are designated to receive stand-in authorization by the SPA computing device. The method also includes receiving an authorization request data signal redirected to the SPA computing device after the authorization request data signal was submitted to an unresponsive issuing bank computing device. The method further includes generating an authorization response data signal based at least upon a comparison of the account numbers stored in the account file to a candidate account number. The method further includes transmitting the authorization response data signal.