Document Version Marking and Access Control
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Solution Overview
Problem
Users accessing locally stored electronic files may inadvertently use obsolete versions without notification, leading to potential inaccuracies or security issues, as existing systems do not directly associate update notifications with locally stored files, and frequent retrieval of updated files from central repositories can increase access times.
Innovation Solution
Assigning unique document identifiers and version identifiers, along with a script or object that checks for file obsolescence upon access, and using encryption keys to enforce access control policies, ensuring users are notified of obsolete files and denied access until updated versions are obtained.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If users store documents locally for quicker access, then access speed is improved, but the risk of using obsolete versions increases
Solution Approach 1:
The system performs preliminary version checking when a user attempts to access a locally stored document. A version check script automatically compares the local document version with the current version on the server before allowing access, preventing users from opening obsolete files without requiring them to manually check or retrieve updates.
2Measurement precision
If users manually compare local documents against latest versions, then version accuracy is improved, but time consumption increases
Solution Approach 1:
The version check script automatically performs version verification without requiring user intervention. When a user opens a local document, the system self-checks whether the document is obsolete by contacting the version control server, eliminating the need for manual comparison while providing accurate version verification.
3Reliability
If users always retrieve documents from central repository, then version currency is improved, but access time increases
Solution Approach 1:
Instead of requiring users to manually retrieve updates, the system performs preliminary version checking automatically when documents are accessed. This allows users to continue using locally stored documents while the system in the background verifies version currency, combining the speed of local access with the reliability of central repository updates.
4Loss of information
If notification systems are implemented to alert users of updates, then awareness of obsolete files is improved, but complexity increases
Solution Approach 1:
The notification system operates automatically without requiring user action. When a document is updated on the server, the version check script automatically compares versions and notifies users if their local copy is obsolete. This self-service approach eliminates the need for users to manually check or configure notifications while maintaining effective communication about updates.
Data Source
AI summary
The present invention is directed to document or file access control. In particular, embodiments of the present invention alter files that are obsolete, so that it is apparent to a user that an updated version of the file should be obtained. Accordingly, files that are subject to revisions can be stored locally, to provide fast and convenient access to such files, with assurance that notice will be provided to a user if the locally stored version of a file becomes obsolete. Furthermore, the invention allows files stored locally that have become obsolete to be identified automatically. The alteration of obsolete files may include the placement of a watermark on or embedded in such files to provide an obvious indication to a user that the file is obsolete.