Credit Card Usage Management System for Dynamic Credit Limit Adjustment
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Solution Overview
Problem
Credit cards cannot be used to exceed a defined credit limit without increasing the credit limit, even if the payment method is changed from lump-sum to revolving.
Innovation Solution
A credit card usage management system that extracts statement data, identifies user-selected data for immediate settlement, transmits settlement requests to a settlement processing server, and updates available credit upon settlement completion, allowing for exceeding the credit limit by adding settled amounts to available credit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the payment method is changed from lump-sum to revolving, then payment flexibility is improved, but the available credit does not increase and shopping beyond credit limit remains impossible
Solution Approach 1:
The system performs preliminary settlement of statement data before the credit limit is reached. By identifying and settling selected statement data in advance through user-designated settlement methods, the system proactively recovers available credit, enabling subsequent shopping beyond the original credit limit without waiting for the regular billing cycle.
Solution Approach 2:
The system dynamically adjusts the available credit based on settled amounts. As statement data is settled through various methods (lump-sum, revolving, installments), the available credit is updated in real-time, allowing the credit card usage limit to be flexible and expandable beyond the fixed original limit.
2Adaptability or versatility
If the credit limit is increased to allow shopping beyond the defined limit, then shopping flexibility is improved, but credit risk and debt accumulation increase
Solution Approach 1:
The system continuously monitors statement data and provides feedback on available credit status. By displaying settled amounts and current available credit to users, the system enables informed decision-making, allowing users to shop beyond the original limit while maintaining awareness of their credit status and avoiding excessive debt accumulation.
Solution Approach 2:
The system recovers used credit by settling statement data. As payments are processed through various settlement methods, the paid amounts are recovered and added back to the available credit, effectively recycling the credit capacity. This allows temporary expansion of usable credit while ensuring eventual recovery and maintaining overall credit discipline.
3Ease of operation
If multiple settlement methods are provided for immediate settlement, then user choice and convenience are improved, but system complexity increases
Solution Approach 1:
The system segments settlement processing by creating separate settlement processing servers for different settlement methods (lump-sum, revolving, installments). Each server handles specific settlement types independently, simplifying the overall system architecture while providing multiple settlement options. The credit card usage management system coordinates between these segmented components through standardized interfaces.
Data Source
AI summary
Provided is a credit card usage management system, which allows a credit card to be used to an extent that surpasses a credit limit defined within a fixed period without increasing the credit limit. A credit card usage management device 10 stores a statement data history including a used amount and a date of use of a credit card, identification information on a deposits-and-savings account, and an available credit for the credit card in association with identification information on the credit card, identifies pieces of statement data selected by a user from among, of stored pieces of statement data, pieces of statement data whose date of use falls within a given period based on data received from a user terminal, transmits a settlement request to settle a selected statement total amount, which is obtained by summing up the used amounts respectively included in the identified pieces of statement data, from the stored deposits-and-savings account, to a settlement processing server for managing the deposits-and-savings account, and adds the selected statement total amount to the stored available credit when a completion notification of a settlement based on the settlement request is received from the settlement processing server, to thereby update the selected statement total amount.