Special Issue on Tools for Computer Performance Modeling and Reliability Analysis Giuliano Casale SAP Research CEC Belfast, TEIC Building Shore Road, Newtownabbey BT37 0QB, UK Richard R. Muntz UCLA Computer Science Dept. 3277A Boelter Hall Los Angeles, CA 90095-1596 Giuseppe Serazzi Politecnico di Milano Dip. di Elettr. e Informazione Via Ponzio 34/5 Milano, Italy, 20133 giuliano.casale@sap.com Editorial Note muntz@cs.ucla.edu giuseppe.serazzi@polimi.it This special issue offers an up-to-date overview on some of the most popular software tools for computer performance modeling and reliability analysis that are currently developed and maintained by research groups in academia. Because of the continuously increasing complexity of computer systems and networks, researchers have developed throughout the years many analytical and simulative approaches to evaluate performance and reliability of realworld systems. However, the mathematical skills required to understand some of these results are often a barrier for their wide-spread adoption. Software tools represent a practical way to overcome this barrier, as they tend to hide most of the mathematical aspects of the modeling or analytical technique used and therefore are more widely accepted. Although software tools represent an effective way to convey modeling research results into practical applications, we feel that more should be done in
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