Metadata Working Group
The Metadata Working Group was formed in 2006 by Adobe Systems, Apple, Canon, Microsoft and Nokia. Sony joined later in 2008.
The focus of the group is to advance the interoperability of metadata stored in digital media. Its specification, , defined the interoperability among Exif, IIM, and XMP with consumer digital images. The following properties were selected for interoperability:
Test files for verification were added in 2008 and are available for .