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Having a Catalogue allows for continuity of cohort building and extraction projects long term regardless of underlying database activities e.g. moving datasets to a new server, schema changes, deprecating datasets etc.
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A Catalogue is a reference to where your data is stored. RDMP does not itself create extra copies of the data or transform it in any way. |
A Catalogue consists of:
Human readable names/descriptions of what is in the dataset it is
A collection of items mapped to underlying columns in your database.
Validation rules for each of the extractable items in the dataset
Graph definitions for viewing the contents of the dataset (and testing filters / cohorts built)
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the first is the Extraction Information logic for the column
the second is the underlying database column reference (ColumnInfo).
If you are ever unsure what a node is you can use the ‘What is this’ function:
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A full list of objects in RDMP is available through the Help=>Show Objects Help menu.
Finally if you are ever confused about the role of a feature or object you can check the Glossary.
In Summary
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