When you bring data into the platform from your warehouse(s) and cloud storage, it's possible that many of the dataset properties will be difficult to understand.
Using the catalog, you can make it easier to interpret data properties by adjusting property names and providing property definitions. Column names, keys, and definitions are all indexed by the catalog search engine, making it easier to find datasets with specific properties, even if you don't know what the property is called in the database.
To modify a property, open the edit dataset popover and scroll to the Data section. Open the Data dictionary and select "edit" on any property you would like to change. You may modify the column name without adjusting the property key.
Select done when you have finished, then save the dataset to apply your changes.