O

OASIS - Organisation ??? (standards body)

OCSP - Online Certificate Status Protocol (X.509)

OGSA - Open Grid Services Architecture

OGSA-DAI - Data Access and Integration in OGSA

OGSADF - Open Grid Services Architecture Development Framework

OGSI - Open Grid Services Infrastructure

OGCE - Open Grid Computing Environment

OGSI - Open Grid Services Infrastructure

OID - Object IDentifier

OKI - Open Knowledge Initiative. A Mellon Foundation project. See OSID.

OMII - Open Middleware Initiative Institute (Southampton)

OpenMP

Jointly defined by a group of major computer hardware and software vendors, OpenMP is a portable, scalable model that gives shared-memory parallel programmers a simple and flexible interface for developing parallel applications for platforms ranging from the desktop to the supercomputer.

Optor - Replica OPTimiser (EU DataGrid)

ORB - Object Request Broker

Within an Object based communication system, an ORB keeps track of the actual addresses of all defined objects and thus is used to route traffic to the correct destination. The CORBA (Common Object Request Broker Architecture) defines the ORB in a series of standards enabling different platforms to share common information.

OSA - Open Services Architecture

OSI - Open System Interconnection

OSID - Has "facade" as a simplified front end.

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Acknowledgments:

Some original material is from the GridPP Web site maintained by Joe Foster, University of Manchester. Additions by Rob Allan, Dharmesh Chohan, Adrian Fish and Audrienne Cutajar Bezzina.

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