Why does the arccatalog ISO XML not include "gmd" within XML tags but other examples I have found online do?
I.e. My ISO 19115 records from Arc Catalog have tags like <fileIdentifier>, but I have seen many others where the tags are written as <gmd:fileIdentifier>. What is causing this difference?
Here are a couple screen shots. The first is from a record that I have exported from ArcCatalog in ISO NAP, the second is an example of a record I found online from NOAA.