The "acronym" link navigates to the latest version of the specification, this link changes whenever a new version of the specification is published.
The "Version" link navigates to the specific version.

Name Acronym Version Status Publication Date
Total: 5
Data Acquisition from Industrial Systems DAIS 1.1 formal June 2005
Historical Data Acquisition from Industrial Systems HDAIS 1.0 formal June 2005
Super Distributed Object SDO 1.1 formal October 2008
Smart Transducers SMART 1.0 formal January 2003
Utility Management Systems Data Access Facility UMS™ 2.0.1 formal June 2005