Fault Tolerant Per Diem Payment System
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Solution Overview
Problem
Organizations face challenges in controlling and documenting per diem allowances for employees and contractors, including ensuring funds are used for authorized expenditures, avoiding overdrafts, and maintaining proper transaction documentation to comply with tax regulations, while managing varying expenditure needs and device failures during transactions.
Innovation Solution
An electronic payment transfer system with a control panel for setting expenditure limits and types, allowing daily adjustments and rollover of unused funds, providing automatic documentation, and ensuring transaction completion through redundancy in case of device failure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If per diem payments are provided to employees for travel expenses, then employees can be reimbursed for food and lodging, but the organization risks improper use of funds and tax compliance issues
Solution Approach 1:
The system implements real-time feedback by monitoring employee per diem expenditures against organizational limits and policies. The payment device communicates with the server to verify transactions, provide immediate feedback on remaining allowances, and generate documentation for compliance verification.
Solution Approach 2:
A server acts as an intermediary between the organization and employees, managing the per diem payment system. The server stores expenditure data, enforces limits, generates tax documentation, and coordinates with payment devices to ensure compliant fund distribution and tracking.
2Adaptability or versatility
If expenditure limits are set for different employees and contractors, then customized control can be implemented, but it becomes difficult to ensure limits are not exceeded
Solution Approach 1:
The system pre-configures expenditure limits and policies for different employee categories before travel begins. The server stores these predetermined limits and automatically enforces them during transactions, preventing limit violations rather than just detecting them afterward.
Solution Approach 2:
Real-time feedback is provided to employees through the payment device when they approach or exceed their customized expenditure limits. The system monitors each transaction against individual limits and provides immediate notification to prevent overexpenditure.
3Ease of operation
If payment cards are used for lodging and food transactions, then employees can easily make purchases, but device battery failure can leave transactions incomplete
Solution Approach 1:
The server acts as a central intermediary that manages transaction data and can complete transactions even when the portable payment device fails. Transaction information is communicated to the server, which maintains authoritative records and can finalize payments independently of the employee's device status.
Solution Approach 2:
The system creates redundant copies of transaction data between the payment device and the server. This ensures that if the device fails, the transaction information already exists on the server and can be processed or recovered without loss.
4Loss of information
If manual receipt collection is required for tax compliance, then proper documentation can be obtained, but employees may fail to obtain receipts resulting in tax issues
Solution Approach 1:
The system automatically generates and provides transaction documentation to employees without requiring manual receipt collection. The payment device and server handle documentation generation, storage, and retrieval automatically, eliminating the compliance burden from employees while ensuring complete records are maintained.
Data Source
AI summary
A system, method and apparatus for redundancy and reduction of device inoperability for payment authorization and documentation for allowing control of per diem expenses. Provision for failure of a transaction processing device before a transaction is completed is provided to ensure the transaction is not lost due to device failure.