Shopping Support System Preventing Duplicate Purchases
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Solution Overview
Problem
Conventional shopping support systems allow multiple users within a group to share shopping memos, leading to inefficiencies such as duplicate purchases, as there is no effective mechanism to prevent or alert users about purchasing the same items.
Innovation Solution
A shopping support system with a server and store terminal that allows users to update and manage shopping memos in real-time, using user identification and commodity information to prevent duplicate purchases by alerting users when the same items are added to shopping carts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple customers share a shopping memo in a conventional system, then group shopping cooperation is improved, but duplicate purchases occur because there is no mechanism to prevent or alert users
Solution Approach 1:
The system implements real-time feedback by monitoring shopping cart changes and notifying other group members when items are added. The notification mechanism provides immediate feedback about inventory status and purchase actions, allowing the system to detect and prevent duplicate purchases while maintaining group cooperation benefits.
Solution Approach 2:
The system performs preliminary actions by checking inventory availability and notifying users before purchases are completed. This advance warning allows group members to adjust their shopping decisions proactively, preventing duplicate purchases before they occur rather than reacting after the fact.
2Reliability
If real-time monitoring of shopping carts is implemented, then duplicate purchase prevention is improved, but system complexity increases
Solution Approach 1:
The system merges multiple functions into a unified notification mechanism that handles inventory monitoring, duplicate detection, and user alerting in a single integrated component. This consolidation reduces overall system complexity by eliminating the need for separate monitoring and alerting systems while maintaining effective duplicate purchase prevention.
Data Source
AI summary
In one embodiment, a shopping support system has a server and a store terminal. The server stores user identification information including information of a group capable of identifying the group to which the user belongs, and shopping memo information which is associated with the user identification information, and includes information of a commodity to be purchased by the user, in a storage device. The store terminal repeatedly acquires the shopping memo information which is associated with the information of the group capable of identifying the group to which the user in whom login has been permitted belongs, from the server at a periodic prescribed timing.