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 Book: System Software and Software Systems: Concepts and Methodology
                           T. Rus and D. Rus

Vol 1 : Systems Methodology for Software, ISBN 981-02-1254-2, pr. US 38
Vol 2 : Execution Support Environment,  ISBN 981-02-1255-0, price US 51
   World Scientific, Singapore, 1995.
     *Order information*: contact one of the Publisher's offices
   (their addresses are listed in [AL0203S1])
     *More information* is available on the WWW:
   Volume 1 : ftp://cs.uiowa.edu/pub/rus/Books/sysoft1.ps
   Volume 2 : ftp://cs.uiowa.edu/pub/rus/Books/sysoft2.ps

  _System Software and Software Systems: Concepts and Methodology_ is
a work intended to offer a systematic treatment of the theory and
practice of designing and implementing system software. This is
achieved by structuring the hardware and software resources of a
computer system as mathematical systems. The system software is defined
as the collection of programs and documents that offer services to the
users of a computer installation in order to make it convenient and
efficient to use.
  There are two major classes of users of a computer installation:
 1. processes executing programs on processors and 
 2. programmers developing their programs.
Thus, the components of the system software are classified as the
execution support environment providing services to program execution
and programming support environment providing services to program 
development.
  Volume 1, _Systems Methodology for Software_, second edition,
February 1995, presents the methodology used for this structuring.
  Volume 2, _Execution Support Environment_, December 1994, is
dedicated to the design and implementation of the software tools
managing program execution. 
  *Authors' Address:* 
   T. Rus, Department of Computer Science, The University of Iowa
   Iowa City, IA 52242, USA.  E-mail: rus@cs.uiowa.edu
   D. Rus, Department of Computer Science, Dartmouth College
   Hanover, New Hampshire 03755-3510, USA. E-mail: rus@cs.dartmouth.edu