ANSI/NISO Z39.87 Data Dictionary; Technical Metadata for Digital Still Images (published March 2011)
A set of metadata elements for raster digital images to enable users to develop, exchange, and interpret digital image files
Embedded Metadata Initiative
A collaboration between the IPTC, American Association of Advertising Agencies and the Association of National Advertisers to create the Embedded Metadata Manifesto.
Why metadata matters
Metadata Use Cases
Federal Agencies Digitization Guidelines Initiative (FADGI) (See general link under Best Practices)
Minimal Descriptive Metadata in Digital Still Images
Embedded Metadata in Broadcast Wave files
International Digital Enterprise Alliance advances core technology to develop standards and best practices for digital image workflow from creation through delivery.
XMPInterOp Working Group (XMP interoperability)
DISC Guidelines & Specifications (2nd edition, 2007) Digital Image Submission Criteria, including the DISC Metadata Specification and the DISC XMP Custom Panel. http://www.idealliance.org/sites/default/files/DISCSPECIFICATIONS2007_0.pdf
IPTC (International Press Telecommunications Council)
IPTC Core Standard and Extensions
Exif Version 2.1 – JEIDA-49-1998
A standard for the image file format (Exif: Exchangeable image file format) used in digital still cameras and related systems.
JPEG XSD (XML schema)
Table listing information (tags) extracted by ExifTool from JPEG images.
Wiki of the Visual Resources Embedded Metadata working group (EMwg). Standards and tools for embedding descriptive metadata into images of art and culture.
Metadata Working Group
Consortium of Adobe, Canon, Microsoft, Nokia, Sony developing standards for the preservation and seamless interoperability of digital image metadata.
Microsoft Developer Photo Metadata Policy
Metadata (file properties) for photo files can be stored using multiple metadata schemas, in different data formats and in different locations within a file. In Windows Vista™, the Microsoft® Windows® Shell provides a built-in property handler for photo files formats, such as JPEG, TIFF, and PNG, to simplify metadata retrieval.
Descriptive metadata elements
PLUS Technical Specification
An integrated system of standards designed to simplify and facilitate image licensing including the PLUS Coalition License Data Format (LDF).
LDF Field Labels
LDF Controlled Vocabularies (values necessary for schema validation)
XMP Specification of LDF, Version 1.2.0
RDF Notation for the XMP Schema for LDF
Sample record using the Schema above:
TIFF Tag Reference (Aware Systems)
A reference on all known baseline, extended, and private TIFF tags. Every tag page offers a list of basic properties (such as code, name, LibTiff name and data type), as well as a short description.
RDF (Resources Description Framework)
A standard model for data interchange on the web. RDF extends the linking structure of the Web to use URIs to name the relationship between things as well as the two ends of the link (this is usually referred to as a “triple”). Using this simple model, it allows structured and semi-structured data to be mixed, exposed, and shared across different applications.
RDF Wiki hosted by W3C:
Concepts and Syntax
Expressing Dublin Core using RDF
LOD (Linked Open Data)
An initiative to make data sets openly accessible and able to communicate with one another on the web.
Linking Open Data Community Project
A project that aims to “extend the Web with a data commons by publishing various open data sets as RDF on the Web and by setting RDF links between data items from different data sources.”
LOD cloud diagram (Last updated: 2011-09-19)
This image shows datasets that have been published (as of update) in Linked Data format.
A site that provides “a home for, or pointers to, resources from across the Linked Data community.”
Tim Berners-Lee: 5 star open data (updated 2009)
A five-step deployment scheme for open data.
Marta Bustillo, updated 02/20/2013