Server Subscription Management for Overlapping Services
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Solution Overview
Problem
When a printer subscribes to multiple services, duplicate service menus are often provided, leading to a useless service subscription situation for the user.
Innovation Solution
A system where a server determines if a device already subscribes to overlapping services and either allows new service subscriptions or cancels existing subscriptions to prevent duplicate service menus, ensuring that a device can only subscribe to non-overlapping services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a device subscribes to multiple services, then the device can access more service functions, but duplicate service menus are provided resulting in useless service subscription
Solution Approach 1:
The server performs preliminary checking of service subscription status before allowing new service subscriptions. When a service request is received, the server first determines whether the device already subscribes to overlapping services, and only then proceeds with subscription or cancellation guidance, preventing duplicate service menus from being generated
Solution Approach 2:
The system implements feedback by continuously monitoring service subscription status and providing real-time guidance to users. When a device attempts to subscribe to a service with overlapping functions, the server detects this through service ID comparison and feeds back cancellation guidance to the user interface, informing users of the duplicate subscription situation and guiding them to cancel existing subscriptions
2Adaptability or versatility
If the system allows multiple service subscriptions, then service variety increases, but service management complexity increases due to duplicate service menus
Solution Approach 1:
The server acts as an intermediary between the device and multiple services, managing service subscriptions centrally. The server compares service IDs and determines overlapping functions, automatically guiding cancellation of duplicate subscriptions through the user interface, thereby simplifying service management while maintaining service variety
Solution Approach 2:
The system performs preliminary service compatibility checking before subscription is finalized. By comparing service IDs and determining overlapping functions in advance, the system prevents complex duplicate subscription situations from occurring, maintaining simple service management while allowing diverse service subscriptions
Data Source
AI summary
A server has a service providing unit. The service providing unit determines whether a device already subscribes to at least one of one or more second services, in response to receiving a service request intended for a first service from an information processing apparatus. The first service includes a first function at least partially overlapping a second function of the one or more second services. The service providing unit guides a cancellation of a subscription for the second service to which the device already subscribes, in a case where it is determined that the device already subscribes to at least one of the one or more second services.