Electronic Value Exchange Terminal Commit Order Management
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Solution Overview
Problem
Existing electronic value exchange systems face challenges in ensuring consistent state recovery of values between terminal devices during communication failures, particularly when devices are not re-connected, and in completing exchanges efficiently when a server is used for security.
Innovation Solution
The system employs a commit order management mechanism, where terminal devices store and manage commit orders and identification information to execute and commit state changes, with an authentication device facilitating the exchange and recovery process, ensuring consistent state recovery and immediate exchange completion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the system uses direct process between terminal devices without server mediation, then transaction speed and efficiency are improved, but reliability of state recovery during communication failures deteriorates
Solution Approach 1:
The system performs preliminary actions by storing backup data in temporary storage units before actual value transfer occurs. Both terminal devices create preliminary copies of their recording medium states, enabling recovery if communication fails during the transfer process.
Solution Approach 2:
The patent introduces temporary storage units as intermediary components between the recording medium and the communication interface. These intermediaries buffer data during transfer and enable recovery operations without requiring server mediation, thus maintaining direct process efficiency while improving reliability.
2Reliability
If the system implements comprehensive recovery protocols with re-connection requirements, then data consistency is improved, but transaction completion time increases
Solution Approach 1:
The system prepares recovery data in advance by creating temporary storage copies before value transfer begins. This preliminary action ensures that if communication fails, recovery can immediately use the pre-prepared backup data without requiring time-consuming re-connections or server interventions.
3Reliability
If the system uses server-mediated exchange for security, then reliability and security are improved, but transaction speed and immediate completion deteriorate
Solution Approach 1:
The patent extracts the recovery functionality from server-mediated processes and implements it locally within terminal devices through temporary storage units. This extraction allows security-critical recovery operations to occur independently without server involvement, maintaining security while enabling immediate transaction completion.
4Measurement precision
If the system implements detailed state tracking and commit order management, then accuracy of recovery is improved, but device complexity increases
Solution Approach 1:
The system segments the value transfer process into distinct states (untransferred, transferring, transferred, recovered) and tracks them separately in exchange state storage units. This segmentation provides precise state tracking while keeping the implementation manageable by dividing the complex recovery process into discrete, trackable segments.
Data Source
AI summary
An electronic value exchange system which includes first and second terminals (1d), (1e) which at least execute electronic value exchange with each other, and an authentication device (110), each of the first and second terminals has a value storage unit (13) which stores the electronic value; an exchange contract data storage unit (17) which stores exchange contract data representing contents of the electronic value exchange; an exchange state storage unit (16) which represents a state of the electronic value exchange; a commit order storage unit (14) which stores a commit order which indicates that which of the first terminal and the second terminal is the first to execute; an identification information storage unit (15) which stores identification information assigned to every process of transmission/reception of the exchange contract data; and a first exchange execution unit (12) which executes transmission/reception of the exchange contract data with respect to each of the first and second terminals and stores it into the exchange contract data storage unit (17), wherein the authentication device (110) has a second exchange execution unit (114) which acquires the exchange contract data from either one of the first and second terminals, and operates the value storage unit (13) of such one terminal to execute the electronic value exchange.