ISO 20271-2:2026

Overview

ISO 20271-2:2026 - Document management - Reference model for long-term preservation of textual documents - Part 2: Fundamentals - is an international standard developed by ISO. This document focuses on establishing fundamental concepts and a reference model for the long-term preservation of textual documents. It provides structured guidance for understanding and supporting preservation based on a five-layer model, covering the diverse properties and elements within textual documents.

As organizational and governmental data increases, digital preservation of documents across various formats (TXT, DOCX, ODT, PDF, HTML, etc.) is essential for maintaining accessibility, interoperability, and interpretability over time. ISO 20271-2:2026 offers a conceptual foundation without detailing specific technical methods, processes, or metadata, ensuring broad applicability across document management and digital archiving environments.

Key Topics

• Fundamental Concepts: Defines core ideas necessary for understanding the lifecycle and preservation of textual documents.
• Five-Layer Reference Model: Presents a multi-layered approach including Visualization, Content, Metadata, Semantics, and Package layers.
  • Visualization Layer: Concerns visual representation, ensuring accurate and reliable appearance across systems.
  • Content Layer: Focuses on the core information (text, images, tables) that must be preserved in its original integrity.
  • Metadata Layer: Includes supplementary information that adds context and supports document management.
  • Semantics Layer: Captures logical and structural meaning, such as headings, lists, and paragraph flow.
  • Package Layer: Pertains to how documents and related resources are stored and retrieved from physical storage.
• Property Types and Classifications: Outlines different property types relevant to each layer, which guide preservation strategies.
• Preservation Strategies: Discusses approaches like format migration, virtualization, encapsulation, and the selection of standardized file formats for long-term archiving.
• Risks and Interoperability: Highlights risks associated with format obsolescence, loss of semantic information, and non-standard storage methods.

Applications

ISO 20271-2:2026 is valuable for:

• Electronic Document Management (EDMS): Assists institutions in evaluating document preservation readiness and developing consistent, interoperable storage solutions.
• Archives and Libraries: Provides principles for classifying and assessing digital textual documents before long-term archiving.
• Records Management: Establishes criteria for systematically analyzing and maintaining the integrity of business or government records.
• Digital Format Development: Serves as a reference when creating new textual document formats or enhancing preservation features in existing ones.
• IT and AI Applications: Ensures that source documents used in areas such as data analytics and artificial intelligence retain their semantic and content properties over time.
• Cultural and Multilingual Preservation: Supports retaining structural and visual characteristics representative of various languages and regions.

Organizations benefit by being able to:

• Evaluate current document formats for preservation suitability
• Aid in migration planning when updating to modern or standardized document formats
• Define requirements when developing or selecting new document storage solutions
• Facilitate international collaboration by providing a shared model and terminology across borders or industries

Related Standards

• ISO 20271-1: Provides an overarching introduction and background to the reference model for the long-term preservation of textual documents.
• ISO 20271-3: Offers a taxonomy and XML-based reference markup for supporting digital preservation practices.
• ISO 32000 series: Standards for the Portable Document Format (PDF), commonly used for archiving.
• ISO/IEC 26300 series: Addresses the OpenDocument format.
• ISO/IEC 29500 series: Specifies Office Open XML formats (DOCX).
• Additional references may include ISO guidelines on metadata, electronic records management, and archiving practices.

ISO 20271-2:2026 supports organizations, records managers, IT specialists, and archivists in building robust, future-proof strategies for the long-term preservation of textual documents across diverse digital environments.