Overview - ISO/TR 18492:2005 (Long-term preservation of electronic document-based information)
ISO/TR 18492:2005 provides practical methodological guidance for the long‑term preservation and retrieval of authentic electronic document-based information when retention periods exceed the expected life of the hardware and software used to create and maintain the information. The Technical Report emphasizes technology‑neutral IT standards, coordinated roles for IT specialists, document managers, records managers and archivists, and applies to all forms of information generated by information systems that are retained as evidence of business transactions and activities. It does not cover the creation, capture or classification processes.
Key topics and technical requirements
- Goals of a preservation strategy: ensure readability, intelligibility and authenticity of retained electronic document‑based information over time.
- Media renewal: recognize media ageing and obsolescence; plan periodic transfer of data from older to newer media to avoid unreadability.
- Metadata: capture and maintain metadata that documents content, context, structure and management of records to support long‑term access and evidentiary value.
- Migration: transfer information between software/hardware environments or storage media with minimal alteration of structure and no loss of content/context.
- Policy and governance: develop a long‑term preservation policy that assigns responsibilities and sets retention goals.
- Quality control and security: incorporate validation, integrity checks (e.g., checksums/hash functions) and access/security controls to protect authenticity.
- Environmental control and monitoring: manage storage conditions (temperature, humidity, contamination risks) to extend media life and reduce data loss.
- Terminology and examples: defines key terms (migration, storage repository, technological obsolescence) and references common formats and technologies (e.g., PDF/A, TIFF, XML, JPEG, SHA‑1) as part of its technical vocabulary.
Applications - who uses ISO/TR 18492:2005
- Records managers and archivists designing long‑term digital preservation strategies.
- IT and storage teams responsible for media renewal, migration and repository operations.
- Document managers and legal/compliance officers who must retain authentic electronic evidence for audits, litigation or regulation.
- Public sector agencies and private enterprises implementing e‑governance, digital archives or business continuity programs.
Related standards
ISO/TR 18492:2005 references and complements records and metadata standards such as:
Using ISO/TR 18492:2005 helps organizations build defensible, interoperable digital preservation practices that safeguard the readability, intelligibility and authenticity of electronic document‑based information over long retention periods.