Glossary

Extensible Metadata Platform
XMP

XMP standardizes a data model, a serialization format and core properties for the definition and processing of extensible metadata embedded into popular image, video and document file formats (JPEG and PDF…). Although metadata can alternatively be stored in a sidecar file, embedding metadata avoids problems that occur when metadata is stored separately [adxmp01].

See also

Resource Description Framework
RDF

The Resource Description Framework is a method to describe and exchange graph data. It was originally designed as a data model for metadata by the World Wide Web Consortium (W3C).

See also

sidecar files
sidecar
.nksc

File used to save image adjustments. This file may be in a folder or within the same folder as the original image. Because changes are not applied directly to the original image data, pictures can be edited repeatedly with no loss in quality. Sidecar files are also used to store labels, ratings, XMP/IPTC metadata, and other data in addition to image adjustments.

References