Standards/METS Standards The Metadata Encoding and Transmission Standard (METS) is a recently emergent standard designed to encode metadata for electronic texts, still images, digitised video, sound files and other digital materials within electronic library collections [29]. Written in XML schema, METS offers a coherent overall structure for encoding all relevant types of metadata (descriptive, administrative, and structural) used to describe digital library objects.
The organisation of the standard can be described by the following categories: