Douglas L PerryDouglas L. Perry is the Director of Marketing for Virtutech, Inc. He is the author of four editions of McGraw-Hill's VHDL. He lives in San Ramon, California.

Harry D. Foster serves as Chairman of the Accellera Formal Verificaion Technical Committee, which is currently defining the PSL (Property Specification Language) standard. He is co-author of the new Kluwer Academic Publishers book Assertion-Based Design. The Chief Methodologist at Jasper Design, Mr. Foster formerly was Verplex Systems' Chief Architect. He lives in Richardson, Texas. Read More Read Less