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Application servers (panel session): born-again TP monitors for the Web


C. Mohan, Larry Cable, Matthieu Devin, Scott Dietzen, Pat Helland, and Dan Wolfson

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Abstract

Dan Wolfson, Architect DB2/WebSphere/MQ Integration, IBM Application Servers (ASs), which have become very popular in the last few years, provide the platforms for the execution of transactional, server-side applications in the online world. While transaction processing monitors (TPMs) have been providing similar functionality for over three decades, ASs are their modern cousins. ASs play a central role in enabling electronic commerce in the web context. They are built on the basis of more standardized protocols and APIs than were the traditional TPMs. The emergence of Java, XML and OMG standards has played a significant role in this regard. ASs integrate developments in a number of areas of computer science: software engineering, distributed computing, transaction processing, database management, workflow management, ... Of course, the traditional TPM-style requirements for industrial strength features such as scalability, availability, reliability and high performance are equally important for ASs also. Security and authentication issues are additional important requirements in the web context. ASs support DBMSs not only as storage engines for user data but also as repositories for tracking their own state.


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