The Digital Preservation Coalition has released The Open Archival Information System (OAIS) Reference Model: Introductory Guide (2nd Edition).
Here's an excerpt from the announcement:
Emphasising its flexibility and conceptual nature, the report describes the OAIS, its core principles and functional elements, as well as the information model which support long-term preservation, access and understandability of data – highlighting the in-built level of abstraction which makes it such a widely applicable foundation resource for digital preservation.
Digital Scholarship | "A Quarter-Century as an Open Access Publisher"
