Mobile Wallet VAT Refund Automation
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Solution Overview
Problem
Existing payment systems lack an efficient and secure method for automating and refunding Value Added Tax (VAT) to travelers on international purchases, requiring manual processes and lacking robust security measures.
Innovation Solution
A digital wallet app on a traveler's smartphone communicates with a remote server to track VAT-bearing transactions, automatically refunding VAT upon departure from a country, enhanced by fingerprint authentication for security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual VAT refund processes are used, then security can be maintained through human verification, but the process is time-consuming and requires manual handling
Solution Approach 1:
The system performs preliminary actions by pre-registering traveler biometric data and pre-authorizing VAT refunds before departure. The biometric template is captured and stored in advance, and the refund amount is calculated and held ready, so that when the traveler departs, the refund is automatically processed without manual verification or waiting time.
Solution Approach 2:
The system enables self-service by using the traveler's own biometric data (fingerprint) as the key to automatically claim their VAT refund. The traveler simply places their finger on the scanner upon departure, and the system autonomously verifies their identity, checks their purchase history, and processes the refund without requiring manual intervention, forms, or human verification.
2Productivity
If automated VAT tracking is implemented, then manual handling is reduced and efficiency increases, but robust security measures and user authentication are required
Solution Approach 1:
The system replaces manual mechanical processes (paper forms, manual verification, physical stamping of refunds) with an automated biometric recognition system. The fingerprint scanner and digital database replace human operators, automatically tracking VAT transactions and processing refunds through electronic verification of biometric data against stored templates.
Solution Approach 2:
The biometric data serves as an intermediary that bridges the traveler's identity and the VAT refund system. Instead of directly manually verifying traveler identity through documents and questions, the system uses the biometric template as an intermediate verification layer that automatically confirms identity, links to purchase history, and authorizes refunds without exposing complex security protocols to the user.
3Reliability
If biometric authentication is used, then security is enhanced and automated verification is achieved, but the system requires additional hardware and setup infrastructure
Solution Approach 1:
The biometric system is designed to be universal by using fingerprint recognition, a biometric modality that is already widely available in modern smartphones and identification systems. The same fingerprint scanner used for general device access can serve the VAT refund verification, eliminating the need for dedicated specialized hardware and leveraging existing universal biometric infrastructure.
Solution Approach 2:
The system performs preliminary setup by capturing and storing the traveler's biometric template in advance during registration or first use. This pre-capture of biometric data means that when the traveler needs to claim a refund, the verification process is immediate and requires no additional hardware setup or configuration at the point of use.
Data Source
AI summary
A digital wallet server computer communicates with a digital wallet application program running on a payment-enabled mobile device. The entry of the mobile device into a country that is foreign to the user's country of residence is detected. The server computer receives transaction information regarding VAT-bearing payment account transactions via the wallet application. The total amount of VAT charged to the user during a trip to the foreign country is calculated. The server computer receives an indication of the user's departure from the foreign country and then initiates a payment account credit transaction to refund the total VAT into the user's payment account.