Daniel P. Siewiorek is an American computer engineer and scientist, currently the Buhl University Professor of Electrical and Computer Engineering and Computer Science at Carnegie Mellon University. His research focuses on design automation, reliability computing, and context aware mobile computing; he has also done research in wearable computing, computer-aided design, rapid prototyping, fault-tolerant computing, and computer architecture. At Carnegie Mellon University, he initiated and guided the Cm* project, which culminated in an operational 50-processor multiprocessor system. He has designed or been involved with the design of nine multiprocessor systems, and has also been a key contributor to the dependability design of over two dozen commercial computing systems. He currently leads