The Data Assistant Add-In includes a series of tools that have been optimized for migrating data from a source dataset to a target dataset that may have a different data structure. It includes a series of predefined methods to automatically populate attributes when migrating data to the target dataset. For example, one method concatenates multiple source fields in to a single target field. Other methods help you extract the left or right characters from a field, or split a single source field in to multiple target fields.
To use the Data Assistant in your organization, you must install the Data Assistant Add-In on each ArcGIS for Desktop machine that will be used to migrate data from a source dataset to one, or more, target datasets.