BS ISO 20271-2:2026 PDF

1 Scope This document specifies fundamental concepts of the reference model for textual documents and provides guidance to support long-term preservation from the perspectives of its five layers. It defines:

the layers that constitute the reference model for textual documents; the types of elements incorporated within textual documents; property types associated with textual documents; classifications of properties by type; and properties inherent to textual documents relevant to long-term preservation.

This document does not cover:

specific technical methods for checking whether the properties exist within a specific textual document; specific technical methods for analysing particular textual document format (e.g. DOC, DOCX, ODT, TXT, PDF); specific metadata items for the long-term preservation of textual documents;