Analyzed Layout and Text Object

ALTO is an open XML standard to describe OCR text and layout information of printed documents. It's often use with METS standard.

See also

• Metadata Encoding and Transmission Standard (METS)
• Digital Item Declaration Language
• Dublin Core, an ISO metadata standard
• Preservation Metadata: Implementation Strategies (PREMIS)
• Open Archives Initiative Protocol for Metadata Harvesting (OAI-PMH)

External links

• ALTO (Analyzed Layout and Text Object) standards on Library of Congress website
• Slides about METS/ALTO by CCS GmbH
• ALTO Introduction by CCS GmbH