It probably needs some review and updating for the most recent releases, but we've tried to add information for each field in the templates, including their EAD XML mappings, in the Data Entry section of the documentation. Here's the link for the ISAD page, for example:
One thing I like to do when reviewing this:
- Import the CSV template example. I've tried to add the name and number of each standards-related field in the most recent ISAD templates.
- Review the import, and supplement any missing fields
- Export as EAD 2002 XML. Now your export can act as a crosswalk, as each EAD element should have the related ISAD or AtoM field name in the data it encloses.
Once 2.6 is released, I'll try to review and update the data entry pages to account for any changes, when I can find some time!