Source : Free On-Line Dictionary of Computing

Yourdon, Inc.
     
         The company founded in 1974 by {Edward Yourdon} to
        provide educational, publishing, and consulting services in
        state-of-the-art software engineering technology.  Over the
        next 12 years, the company grew to a staff of over 150 people,
        with offices throughout North America and Europe.  As CEO of
        the company, Yourdon oversaw an operation that trained over
        250,000 people around the world; the company was sold in 1986
        and eventually became part of {CGI}, the French software
        company that is now part of {IBM}.  The publishing division,
        Yourdon Press (now part of Prentice Hall), has produced over
        150 technical computer books on a wide range of software
        engineering topics; many of these "classics" are used as
        standard university computer science textbooks.
     
        (1995-04-16)