Virtual Card Transfer Error Recovery via Image Library
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Solution Overview
Problem
Existing methods for processing virtual cards in Instant Messaging (IM) applications lack efficient mechanisms for transferring and managing virtual card transactions, leading to issues such as loss of virtual cards during transfer due to system failures.
Innovation Solution
A method and device for processing virtual cards that involves receiving a transfer request, transferring the virtual card between user accounts, generating and storing an image with user IDs and resource values, and maintaining an image library to record transactions, with error handling to restore states in case of transfer failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If virtual card transfer is implemented in IM applications, then user interaction and functionality are enhanced, but risk of card loss during transfer increases
Solution Approach 1:
The system performs preliminary actions by capturing the virtual card image and storing it in an image library before the transfer is completed. This ensures that even if the transfer fails or the card is lost during the process, a backup copy exists and can be restored from, thus preventing card loss while maintaining transfer functionality.
Solution Approach 2:
The patent creates a visual copy (image) of the virtual card and stores it in an image library associated with the user account. This copying mechanism ensures that the original virtual card information is preserved in multiple forms (digital record and visual image), providing redundancy that prevents complete loss during transfer operations.
2Reliability
If detailed transfer records are stored for error recovery, then reliability is improved, but system complexity increases
Solution Approach 1:
The patent introduces an image library as an intermediary component between the virtual card system and the transfer process. This intermediary stores visual records of virtual cards and provides a simple interface for error recovery, reducing the complexity of the overall error handling mechanism while improving reliability through systematic record-keeping.
Data Source
AI summary
A transfer request is received from a terminal, in which the transfer request carries a user identity (ID) of a first user, a user ID of a second user, and a virtual card ID of the first user; the virtual card is transferred from user account of first user to user account of second user, based on the user ID of the first user, the user ID of the second user and the virtual card ID; an image for transferring the virtual card is obtained; an image library of the virtual card is obtained; an image ID and the image are stored into the image library of the virtual card.