Liangzhao Zeng  IBM Research Division, Thomas J. Watson Research Center, P.O. Box 218, Yorktown Heights, NY 10598 (lzengus.ibm.com). Dr. Zeng is a researcher in the Business Informatics department. He received a Ph.D. degree in computer science from the University of New South Wales, Australia. He works in the areas of enterprise data management, event processing, and services engineering, with a focus on system infrastructure and data management issues. His recent research interests include complex event processing, semantic data management, and service composition.

Hui Lei  IBM Research Division, Thomas J. Watson Research Center, P.O. Box 218, Yorktown Heights, NY 10598 (hleius.ibm.com). Dr. Lei is a research staff member. He received a Ph.D. degree in computer science from Columbia University. He works in the areas of enterprise computing, mobile computing, and services engineering, with a focus on software infrastructure and data management issues. He is a past chair of the Mobile Computing Professional Interest Community at IBM Research. Dr. Lei is a senior member of IEEE.

Teruo Koyanagi  Tokyo Research Laboratory, IBM Japan, Ltd., 1623-14 Shimotsuruma, Yamato-shi, Kanagawa-ken, 242-8502, Japan (teruokjp.ibm.com). Mr. Koyanagi is a research staff member. He received B.S. and M.S. degrees in science engineering from the University of Tsukuba, Japan. His recent research interests include cache technologies, application optimization, and business event processing.

Hiroyasu Ohsaki  IBM Yamato Software Laboratory, IBM Japan Ltd., 1623-14, Shimotsuruma, Yamato-shi, Kanagawa-ken, 242-8502, Japan (ohsakijp.ibm.com). Mr. Ohsaki is an advisory software engineer. He received a B.S. degree in mechanical engineering from the University of Electro-Communications, Japan. His current interest is in service-oriented architecture solutions with the WebSphere Process Server and Business Monitor.

Henry Chang  IBM Research Division, Thomas J. Watson Research Center, P.O. Box 218, Yorktown Heights, NY 10598 (hychangus.ibm.com). Dr. Chang is a Senior Technical Staff Member and a research manager in the Business Informatics department. He received a B.S. degree in electrical engineering from the National Taiwan University, and M.S. and Ph.D. degrees in computer science from the University of Wisconsin–Madison. He leads the research effort in business performance monitoring and management framework with technical impacts on WebSphere business process management suites and IBM internal supply-chain-visibility initiatives. He received an IBM Innovate Award for his work on business-to-business collaboration solutions. Dr. Chang is a longtime member of ACM and IEEE.