Three driving components of maintenance and change are: system enhancements, database expansion, and routine system maintenance (updates).
- Data maintenance procedures
- Managing Existing Data
* Backup / Restore
* Granting Access To Data
* Records Management And Retention
- Reviewing Current Data For Potential Errors and Changes
* Incompleteness
* Errors
* Topological Errors
- Detecting Change and Identifying Sources for Updates
- Collection of New Information
- Applying the Edits and Tracking Changes
- Verifying the Corrections
- Updating the Master Database
- Distributing the Updates to Users
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