Joyce Tokar
SIGAda 2008
Joyce Tokar
image of Joyce Tokar

Joyce Tokar is the President of Pyrrhus Software, a software consultancy and training company. Over the past 20 years, Dr. Tokar has been working in the area of mission and safety critical, real-time, and embedded software systems. She has been involved in research and development in the areas of software and systems architectures, high level computing languages such as Ada, Ada 95, C/C++, and Java, and real-time analysis methodologies. During this time she has co-authored the Society of Automotive Engineering (SAE) Architecture Analysis and Design Language (AADL) standard. She has written the Programming Language Annex for the SAE AADL standard. Dr. Tokar has also participated in the evolution of the Ada programming language both as a member of the team defining the Ada 05 update and as a distinguished reviewer for Ada 95.

Dr. Tokar is also active in the area of secure software system development tools and environments. She is leading a team in the analysis and evolution of the system of systems software for the US Department of Defense Future Combat System (FCS).

From 1981-84 Dr. Tokar was responsible for the development of the Gensoft (Western Digital) Ada system. She received her PhD in Computer Engineering from Clemson University in South Carolina. She holds an MS and a BS in Computer Science from the University of Pittsburgh.

She can be reached via email at tokar at

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last updated 3 November 2008 - cgr