The Record Linkage Log is the module that stores all results of the Record Linkage Process. Here you can track which records were compared, their similarity score, and which actions were performed.
Table of Contents
Introduction
This module stores the results of Record Linkage calculations. Each entry in the log represents a source record that was processed. If the same record appears multiple times, it means it was included in several changes.
For each change, the system scores:
- The highest similarity score between source and target.
- Field-level differences according to the mapping configuration.
If you should experience errors, see here what the error codes mean.
Structure and Columns
Key columns in the log:
- Source Module / Source Record: Original record.
- Target Module / Target Record: Compared record.
- Similarity Score: Highest calculated value.
- Linkage Details: Summary of differences.
- Status: Match (automatically linked – score ≥ upper threshold), Potential Match (requires manual review) or No Match (no link created).
Users can filter results by execution date or runner.
Automated Actions
An automated process (Mass Transfer Scheduler) executes the actions defined in the Action Taken column:
- Link: Automatically creates a link between source and target.
- Do Nothing: No changes – ideal for testing.
Review of Potential Matches
Potential matches must be reviewed by a data steward to ensure that the source and target record represent the same entity (e.g., person). Possible actions:
- Link: Links the records.
- Do Nothing: No change.
- Create as Target Record: Creates a new target record based on the source record.
This option ensures that unique records are correctly added without compromising data quality.
Global Filters
You can use the global filters to display all relevant entries in the log. You’ll find the filters on the left above the log table. All four filters are sorted by the most recent execution date, so the latest activity appears at the top.
Data Steward To-Dos
Use this option when you want a list of items that are highly likely to require manual review. Records marked as potential matches and still awaiting processing will be displayed. The columns show what has happened so far (Action Taken), the reason for the match (Linkage Details), where the data comes from and where it goes (Source/Target), the clustering/grouping, who or what triggered it (Runner), and when it occurred (Date Executed).
In short: a clear “to-do” list for the data steward to decide the next steps.
Pending Records
Use this view to display records for which a next step has already been selected (e.g., Create Target, Link, or Do Nothing) but processing is still pending. This allows you to quickly check which action is planned for which source/target, which specific target was selected, as well as the match status and timestamp.
In short: a work queue with pending actions ready for execution.
Data Steward Action Log
Use this feature to review results and identify issues. The focus is on potential matches that have already been processed or where a processing error occurred. You can see which actions were taken, the match status and details, the source and target context, the processing status, and when it happened.
In short: an audit-style view to review results and track errors.
Record Linkage All Logs
Use this feature to get a comprehensive overview of everything. All record linkage activities are listed with key context information (action taken, status, source/target, selected target, cluster, runner, processing status, and time).
In short: the “everything” view for scanning or creating reports on all activities.