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From: karl@grebyn.com (Karl Nyberg)
Newsgroups: comp.lang.ada
Subject: Ada 9X and reuse
Message-ID: <8903081536.AA09197@grebyn.com>
Date: 8 Mar 89 15:36:01 GMT
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Organization: Grebyn Corporation
List-Id: <comp.lang.ada>

[Ed - forwarded]

                              ADA 9X PROJECT
                          REQUEST FOR INFORMATION

In  order  to  expedite the Ada revision process, the Ada 9X Project Office
under sponsorship by the Ada Joint Program Office has tasked  the  Software
Engineering  Institute  to  perform a number of focused short-term studies.
These studies will not replace the Ada 9X Project requirements analysis but
are  intended  to  augment and facilitate future Ada 9X activities.  One of
these studies deals with software  reuse  and  Ada.    The  purpose  is  to
identify   any   deficiencies  in  Ada's  support  for  reuse  and  provide
recommendations for possible revisions.  The product of this effort will be
a  report  to  be  used to consider deficiencies during the Ada 9X revision
process. To help complete this study, comments on the following topics will
be helpful:

   1. Language  issues  - this area shall focus on features of the Ada
      language itself, both syntax and semantics.  While generics will
      be  a  major area of concern, this part of the study effort will
      also look at other areas of the language that may  affect  reuse
      such as types, packages, and exceptions.

   2. Reuse-based  development  issues  -  effective  reuse  is  based
      largely on abstraction mechanisms.   While  some  of  these  are
      related to the language's syntax and semantics, others relate to
      software development methodology.  This part of the study  shall
      examine   reuse-based  methods  both  for  the  development  and
      application of reusable software.  It will determine if  changes
      in the language would benefit particular reuse-based development
      methods.

   3. Implementation issues - Ada compiler  implementations  may  pose
      certain  reuse-related  problems.  Because there is some loss in
      efficiency due to  the  general  nature  of  reusable  software,
      optimization features must minimize this loss.  This part of the
      study shall identify language requirements to ease the burden of
      optimization.    In  addition,  compilers  must  be  capable  of
      handling complex generic structures.  Together with the  methods
      area,  this part of the study shall identify standard approaches
      for reuse and methods for assessing performance of compilers for
      these approaches.

The point of contact for this study is:

                Mr. Sholom Cohen 
                Software Engineering Institute 
                Carnegie Mellon University 
                Pittsburgh, PA 15213 
                412-268-5872 
                sgc@sei.cmu.edu

Please send your comments to Mr. Cohen by 25 March 1989.    The  report  on
this topic will be made available to the public upon completion.

Ada  9X  is  an  Ada  community  project.    I  appreciate your support and
consideration of this matter.
                                      CHRIS ANDERSON
                                      Ada 9X Project Manager

March 3, 1989


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