Semantic Days in Stavanger

Semantic Days 2014


Upgraded endpoint

The main endpoint has been upgraded. Among the many new features and enhancements is support for Internet Explorer 9, JSON-LD and shared queries.

Should you see any problems with the upgrade, please let us know. The backup endpoint has not been upgraded:


2015 Fiatech Technology Conference & Showcase

The 2015 Fiatech Technology Conference & Showcase will be arranged April 13–15 at Boca Raton, Florida, USA. It will contain a unique blend of participants and has programs targeted at many areas in the capital projects industry. The event also includes a pre-conference session Advancing Interoperability with Reference Data. For more information see


New endpoint and namespace

A new endpoint has been set up to handle the new namespace. The defaultRdsId predicate is populated according to the JORD ID Spec.

Try out the new "type as you go" search and the more reliable URI scheme.

And read more on the RDS page.


News Archive

For older news postings, please have a look in the News Archive

POSC Caesar Association

POSC Caesar Association (PCA) is a non-profit global-standardization member organization that shall promote the development of open specifications to be used as standards for enabling the interoperability of data, software and related matters.

PCA initiated ISO 15926 “Integration of life-cycle data for process plants including oil and gas production facilities" and is committed to its maintenance and enhancement.

Join for membership!

Reference Data Service (RDS)

PCA operates the RDS as a public service for the global process industry including oil and gas. RDS contains all reference data in ISO 15926, the Oil & Gas Ontology (OGO), reference data from EU projects in environment and pipelines, reference data for capital intensive project, as well as some reference data from defense and ship industries. The Norwegian Ministry of Defense, Det Norske Veritas (DNV) and Norwegian Oil Industry (OLF) have funded the development of The Reference Data System and is now funding the operation of the system.

ISO 15926-2 in OWL as visualized by the GrOWL Protege plugin

ISO 15926

PCA initiated ISO 15926 in 1997 and has chaired the group in ISO TC184/SC4 accountable for ISO 15926 ever since. The first four parts have been completed as ISO standards while the Parts 6 and 7 are still in progress.

A statement from the IT industry:

ISO 15926 is extraordinarily robust and complete, both in its specification and the technical infrastructure through which it is deployed. These characteristics differentiate ISO 15926 from other, less formal attempts at standards development. Other standards initiatives have broken down due to their inability to scale the submissions process, cover the structural requirements of multiple disciplines and provide an enterprise-grade technology foundation.


The POSC Caesar Association website is powered on Trac using a wiki, the svn version control system a ticketing system, discussion forums and more making the website a powerful and efficient tool for collaboration.

To get your PCA Trac account, send a request to RDS Operations Support Services.

About PCA
Reference Data Services (RDS)
RDS Operations Support
Meetings and Conferences
ISO 15926
Special Interest Groups
Technical Advisory Board
Norwegian Continental Shelf Std