Biographical sketches of authors

Stefan Koerner   IBM Server Group, IBM Entwicklung GmbH, Schoenaicherstrasse 220, 71032 Boeblingen (koerners@de.ibm.com). Mr. Koerner is a Senior Engineer in the IBM eServer z900 Hardware Development Group in the Boeblingen laboratories. He joined IBM in Boeblingen in 1981 after receiving an M.S. degree in electrical engineering from the Technical University of Furtwangen, and has held a number of positions in logic design, microcode development and hardware verification. He was the technical leader for the microcode verification and emulation of the IBM S/390 G7 system. Mr. Koerner holds three patents, is the author of 12 technical papers, and received an IBM Outstanding Innovation Award in 2001. He is currently the technical leader for microcode verification in the IBM Enterprise Systems Group.

Martin Kuenzel   IBM Entwicklung GmbH, Schoenaicherstrasse 220, 71032 Boeblingen (kuenzel@de.ibm.com). Dr. Kuenzel joined the IBM Boeblingen laboratories in 1996 after completing his Ph.D. thesis in solid-state physics at the RWTH Aachen. Since then, he has worked in various areas in the zSeries Support Element Development Department of the IBM Server Group. He is currently the team leader of the Cage Communication Support Layer Development team. Dr. Kuenzel received an IBM Outstanding Technical Achievement Award for his efforts on Multiprise 3000 SE hardware access and an IBM Outstanding Technical Achievement Award for his efforts on the design and development of the IBM eServer z900.

Edward C. McCain   IBM Enterprise Server Group, 2455 South Road, Poughkeepsie, New York 12601 (mccain@us.ibm.com). Mr. McCain is currently an Advisory Verification Engineer and Team Leader for the S/390 emulation program. He joined IBM in 1982 and has worked on engineering systems testing for the IBM 308X, 3090, ES/9000, and the S/390 G3, G4, G5, and G6. He has received a Leadership Award for his work on PR/SM & MPG, a Division Award for his work on the ES/9000, Excellence Awards for his work on S/390 Parallel Sysplex EDVT testing, S/390 G4 functional test leadership, S/390 G6 EST project leadership, and an IBM Outstanding Technical Achievement Award for his work on zSeries verification.