Mark Little was Chief Architect, Transactions for Arjuna Technologies Ltd, a UK-based company specialising in the development of reliable middleware that was recently acquired by JBoss, Inc. Before Arjuna, Mark was a Distinguished Engineer/Architect within HP Arjuna Labs in Newcastle upon Tyne, England, where he led the HP-TS and HP-WST teams, developing J2EE and Web services transactions products respectively. He is one of the primary authors of the OMG Activity Service specification and is on the expert group for the same work in J2EE (JSR 95). He is also the specification lead for JSR 156: Java API for XML Transactions. He's on the OTS Revision Task Force and the OASIS Business Transactions Protocol specification. Before joining HP he was for over 10 years a member of the Arjuna team within the University of Newcastle upon Tyne (where he continues to have a Visiting Fellowship). His research within the Arjuna team included replication and transactions support, which include the construction of an OTS/JTS compliant transaction processing system. Mark has published extensively in the Web Services Journal, Java Developer's Journal and other journals and magazines. He is also the co-author of several books including “Java and Transactions for Systems Professionals” and “The J2EE 1.4 Bible.”
Atomic transactions are a well-known technique for guaranteeing consistency
in the presence of failures. The ACID properties of atomic transactions
ensure that, even in complex business applications, consistency of state is
preserved.
Transactions are best viewed as "short-lived" entities operating in a
closely-coupled environment, performing stable state changes to the system;
they are less well suited for structuring "long-lived" application functions
(e.g., running for hours, days, etc.) and running in a loosely coupled
environment like the Web. Long-lived atomic transactions (as typically occur
in business-to-business interactions) may reduce the concurrency in the
system to an unacceptable level by holding on to resources (e.g., locks) for
a long time; further, if... (more)
Use of atomic transactions is a well-known technique for guaranteeing
consistency in the presence of failures. The ACID properties of atomic
transactions (Atomicity, Consistency, Isolation, Durability) ensure that even
in complex business applications consistency of state is preserved.
Transactions are best viewed as "short-lived" entities operating in a closely
coupled environment, perfo... (more)
In July 2002, BEA, IBM, and Microsoft released a trio of specifications
designed to support business transactions over Web services. These
specifications, BPEL4WS, WS-Transaction, and WS-Coordination, together form
the bedrock for reliably choreographing Web services-based applications,
providing business process management, transactional integrity, and generic
coordination facilities re... (more)
In July 2002, BEA, IBM, and Microsoft released a trio of specifications
designed to support business transactions over Web services. These
specifications - BPEL4WS, WS-Transaction, and WS-Coordination - together form
the bedrock for reliably choreographing Web services-based applications,
providing business process management, transactional integrity, and generic
coordination facilities ... (more)
In July 2003 a consortium of Web services vendors released the Web services
Composite Application Framework (WS-CAF) to the community. WS-CAF is
comprised of three specifications that together provide a means of reliably
composing individual Web services into larger aggregate applications. The
cornerstone of this suite is the management of stateful interactions between
Web services that ... (more)
Mark Little was Chief Architect, Transactions for Arjuna Technologies Ltd, a UK-based company specialising in the development of reliable middleware that was recently acquired by JBoss, Inc. Before Arjuna, Mark was a Distinguished Engineer/Architect within HP Arjuna Labs in Newcastle upon Tyne, England, where he led the HP-TS and HP-WST teams, developing J2EE and Web services transactions products respectively. He is one of the primary authors of the OMG Activity Service specification and is on the expert group for the same work in J2EE (JSR 95). He is also the specification lead for JSR 156: Java API for XML Transactions. He's on the OTS Revision Task Force and the OASIS Business Transactions Protocol specification. Before joining HP he was for over 10 years a member of the Arjuna team within the University of Newcastle upon Tyne (where he continues to have a Visiting Fellowship). His research within the Arjuna team included replication and transactions support, which include the construction of an OTS/JTS compliant transaction processing system. Mark has published extensively in the Web Services Journal, Java Developer's Journal and other journals and magazines. He is also the co-author of several books including “Java and Transactions for Systems Professionals” and “The J2EE 1.4 Bible.”
Keith Bergelt
Gaurav Mantri
Aditya Banerjee
John Karamitsos
Kaj van de Loo
Bob Little
Alois Reitbauer
Chris Schin
Richard Gordon
Anil Parambath
