RLF 2.2 now available

RLF 2.2 now available

[creps]

Version 2.2 of the Unisys STARS Reusability Library Framework (RLF) is 
now available in both source code and binary forms via anonymous FTP 
from host "stars.rosslyn.unisys.com" in directory "pub".  The source
code release is in file RLF_2.2.tar.Z and the binary release is in
file RLF_binary_2.2.tar.Z.  Both these files are compressed Unix tar 
files.

The RLF is a knowledge-based software system designed and implemented 
by Unisys Defense Systems under the auspices of the DoD Software 
Technology for Adaptable Reliable Systems (STARS) program, primarily 
to enable the development of domain-specific reuse libraries.  
The RLF, implemented in Ada, is extensible and is integrable with 
other Ada systems.  The RLF includes a semantic network subsystem 
(AdaKNET) and a rule-driven inferencing subsystem (AdaTAU) which are 
used to record domain knowledge and heuristics in a form suitable 
for use within Ada applications, such as reuse library browsing and 
management tools.  It runs on Sun 3 and Sun 4 workstations with 
SunOS 4.0.3, 4.1 or 4.1.1, and is compilable with the Verdix 6.0.3 
Ada compiler.

The RLF comes with a Graphical Browser tool for inspecting AdaKNET 
networks graphically via an X Window System interface.  This interface 
is built on the Unisys STARS Reusable Graphical Browser (RGB), version 
0.4.1, and the Unisys STARS Ada/Xt implementation, version 3.2, and these
products must be obtained in order to build the RLF graphical browser
from source code.  They can be obtained via anonymous FTP from the same
host and directory in which the RLF resides.  Appended to this message 
are the Ada/Xt and RGB entries from the README.catalog file included in 
the FTP directory.

RLF 2.2 features substantial enhancements to the RLF Graphical Browser
application, providing a richer set of capabilities for navigating
within library views, a basic inferencer invocation capability, a pattern
matching search capability, a set of view management enhancements, and
a variety of performance enhancements and bug fixes.

Both the RLF source code and binary releases include the RLF AdaKNET, 
AdaTAU, Librarian, and Graphical Browser User Manuals, as well as a
Version Description Document that describes this version of the RLF 
and provides installation instructions.  The documents are provided 
in both plain ASCII (suffix ".tty") and Postscript (suffix ".ps0"
[in some cases] and ".ps") forms, in the files listed below:

     VDDrlf
     docs/UserManual/AdaKNET_User_Manual
     docs/UserManual/AdaTAU_User_Manual
     docs/UserManual/Librarian_User_Manual
     docs/UserManual/RLF_Graphical_Browser_User_Manual

If you do not have FTP capability, you may obtain the RLF and its
supporting software on tape from the Unisys STARS Center.  If you 
have questions about this or other RLF issues, please contact me 
for further information.

----------------------------------------------------------------------
--  Dick Creps                          Unisys Defense Systems      --
--  creps@stars.reston.unisys.com       STARS Center                --
--  (703) 620-7100                      12010 Sunrise Valley Drive  --
--  (703) 620-7916 (FAX)                Reston VA 22091             --
----------------------------------------------------------------------

\f
The Ada/Xt and RGB catalog entries:

===============================================================================

   Filename:  AdaXt_3.2.tar.Z
   Filetype:  compressed tar

       Item:  Ada/Xt Toolkit,
              Version 3.2,
              SunOS Implementation

Description:

This is the Unisys Ada implementation of the Xt toolkit (Ada/Xt), version 3.2.
Included in this package are Unisys revisions to Version 1.0 of the STARS
Ada/Xlib Bindings produced by Unisys, Boeing, and SAIC, an Ada implementation
of the Xt intrinsics that is compatible with the joint STARS Xt interface
specification, and an Ada implementation of a sample widget set.  The Xlib
bindings are compatible with X11R3 and X11R4.

Also included in this release are the Ada/Xt Style Guide and the Ada/Xt Version
Description Document, which describes this version of Ada/Xt and provides
installation instructions.  These documents are provided in both plain ASCII
(suffix ".tty") and Postscript (suffix ".ps") forms, in the files listed below:

     adaxt/VDDxt
     adaxt/Style_Guide/styleguide


Update Information:

Open Windows compatibility enhanced.
Memory leaks patched.
Text widget improved.

===============================================================================

   Filename:  RGB_0.4.1.tar.Z
   Filetype:  compressed tar

       Item:  Reusable Graphical Browser (RGB),
              Version 0.4.1,
              SunOS Implementation

Description:

This reusable software component implements a graphical user interface
for viewing the contents of an object management system.  Its purpose is to
facilitate the construction of various browsing tools, serving as the user
interface component of those tools.  The generic application interface and
tailorable user interface promote portability of graphical browsing tools by
isolating them from the underlying graphics system.  Tool builders need not be
familiar with the intricacies of graphics packages or windowing systems to use
this product.

RGB is implemented in Ada, with the exception of one small routine, coded
in C.  The implementation is compatible with Version 11, Releases 3 and 4 of
the MIT X Window System and is dependent upon the Unisys STARS Ada/Xt Toolkit.

The release includes the RGB User Manual, and the RGB Version Description
Document, which describes this version of RGB and provides installation
instructions.  The documents are provided in both plain ASCII (suffix ".tty")
and Postscript (suffix ".ps") forms, in the files listed below:

     browser/VDDrgb
     browser/docs/UserManual


Update Information:

Improved scrolling, error detection, faster view changes.
Added refresh for suppressed displays.