Open-System Access Verification With Migrated Management Information
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Solution Overview
Problem
During the migration of batch operation programs from a main frame system to an open system, access verification becomes impossible due to the lack of management information on the open system side, leading to unauthorized execution of job steps.
Innovation Solution
A computer system that migrates management information from the main frame to the open system, synchronizes and changes it to be usable in the new environment, and performs access verification using the updated information to maintain confidentiality and ensure authorized execution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If programs are migrated from main frame system to open system, then system flexibility and accessibility are improved, but access verification capability deteriorates due to loss of management information
Solution Approach 1:
The patent applies preliminary action by acquiring management information from the main frame system before the program migration occurs. The open system proactively obtains and stores the necessary access control data in advance, ensuring that when the program is migrated and executed on the open system, the management information is already available for access verification. This prevents the loss of access control capability during migration.
Solution Approach 2:
The patent introduces an intermediary mechanism in the form of a management information acquisition unit that acts as a bridge between the main frame system and the open system. This intermediary component transfers and adapts the management information from the main frame's access control system to the open system's execution environment, enabling access verification to function across different system platforms.
2Reliability
If management information is transferred from main frame system, then access verification is enabled, but information conversion complexity increases
Solution Approach 1:
The patent applies self-service by designing the management information acquisition unit to automatically obtain, parse, and convert management information without requiring manual intervention. The system autonomously handles the complexity of information conversion between different formats, reducing the burden on operators and minimizing conversion errors while maintaining reliable access verification.
3Object-affected harmful factors
If access verification is implemented on open system, then security is improved, but system complexity increases due to additional components
Solution Approach 1:
The patent extracts the essential access verification function from the complex main frame system environment and implements it as a separate, dedicated management information acquisition unit in the open system. By isolating this specific function, the system gains security capabilities without requiring the entire main frame system's complexity, as only the necessary access control components are transferred and adapted.
Data Source
AI summary
A computer system includes: an acquisition unit that acquires, from a first computer system, management information to be used for access verification of a resource to be referred to in a job step for which a program is migrated from the first computer system; a change unit that changes the management information acquired by the acquisition unit to management information usable by a second computer system; a storage unit that stores the management information changed by the change unit; and a verification unit that performs, in response to a request for execution of a job step with which the program migrated from the first computer system is associated, the access verification of the resource using the management information of the resource to be referred to in the job step stored in the storage unit.