Order Record Management Across Time Axes for System Restoration
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Solution Overview
Problem
In systems with redundant configurations, upon failure, the service is maintained on the active system, but restoration of the failed system requires orders that align with the active system's state, and existing record management lacks consistency with the service state.
Innovation Solution
A record management apparatus that stores order records with multiple time axes, including control target and system reflection and cancellation times, enabling retrieval of consistent orders for restoration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If only records of orders provided are merely managed, then the record management is simple, but an order record having consistency with the service state is unknown
Solution Approach 1:
The patent introduces a new dimension of time management by storing order records with multiple time axes (control target reflection time, system reflection time, control target cancellation time, system cancellation time). This multi-dimensional time tracking enables the system to identify order records that are consistent with the current service state, resolving the information loss problem while maintaining manageable complexity through structured data organization.
2Reliability
If restoration is performed based on the active system, then service continuity is maintained, but the failed system cannot be restored to its original state
Solution Approach 1:
The patent implements a feedback mechanism by tracking the reflection times of orders in both control targets and systems. The record acquisition unit uses this feedback information to identify which order records need to be re-executed on the failed system to restore it to the same state as the active system, enabling accurate restoration while maintaining service continuity.
3Manufacturing precision
If multiple time axes are stored for order records, then restoration consistency with service state is achieved, but the record storage structure becomes complex
Solution Approach 1:
The patent segments the time management function into distinct time axes (control target reflection time, system reflection time, control target cancellation time, system cancellation time), each serving a specific purpose in tracking order execution and cancellation. This segmentation allows the complex restoration consistency requirement to be met through organized, manageable time tracking components rather than a monolithic complex structure.
Data Source
AI summary
A record management apparatus 1 for managing an order record of an order executed for a control target is provided. The record management apparatus 1 includes: an order record storage unit 12 that stores the order record in association with a plurality of time axes; an order record registration unit 11 that receives the order record and registers the order record in association with the plurality of time axes in the order record storage unit 12; and an order record acquisition unit 13 that when a retrieval request with a task type designated is received, retrieves the order record from the order record storage unit according to the task type using the plurality of time axes.