15. Deduplication
Last updated
Last updated
OpenCRVS employs a robust matching algorithm, leveraging the capabilities of ElasticSearch. By automatically detecting potential duplicates, OpenCRVS prompts the Registrar to carefully review these declarations before proceeding with the registration process. This proactive approach ensures that duplicate records are promptly addressed and minimises the chances of duplicate civil registration records from existing. To learn more about how deduplication works please refer to
Declaration status is in-progress
Field agent sends complete declaration for review
Registration Agent starts and sends declaration for approval
Registrar starts and then registers a declaration
Each trigger action listed above prompts a deduplication check
If deemed a potential duplicate the declaration will show in the Ready for review workqueue for a Registrar
Registrar assigns themselves to the potential duplicate declaration
Registrar clicks “Review”
User is prompted to check the potential duplicate declaration against matched records
User clicks on the tab of a flagged record
User compares the potential duplicate declaration against the matched record side by side
User reviews any other matched records
User returns to the potential duplicate declaration view after making an assessment
User clicks “Not a duplicate”
User confirms their decision
Declaration status remains ‘In review’ and in Ready for Review workqueue.
Record audit is updated to show that the declaration was marked not a duplicate
User clicks “Mark as a duplicate”
User prompted to select the record it is a duplicate of
User prompted to add a reason for their decision
User confirms their decision to mark it as a duplicate
Declaration status changed to ‘Archived’. Declaration removed from all workqueues
Record audit is updated to show that the declaration was marked as a duplicate and was archived