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<H1><A NAME="SECTION00200000000000000000">
1. Introduction</A>
</H1>
<P>
This report describes the design and implementation of the
<A NAME="tex2html1"
HREF="http://www.cs.utwente.nl/~tcm">Toolkit for Conceptual Modeling</A>.
This is a working document, supplied together with the source code. It is not
intended for separate publication.
<P>
TCM consists of a number of X/Motif-based diagram and table drawing
tools. This document tries to give insight into <I>how</I> TCM is accomplished
from the designer/programmer's point of view. The
<A NAME="tex2html2"
HREF="../usersguide/index.html">user guide and reference manual</A> [<A
HREF="developersguidenode10.html#Dehne99b">2</A>]
describes <I>what</I> TCM does from the user's point of view.
<P>
TCM is implemented in C++ [<A
HREF="developersguidenode10.html#Strous91">13</A>] and it uses the standard X Windows
libraries Xlib [<A
HREF="developersguidenode10.html#Xlib96">3</A>] and Xt (X toolkit intrinsics) [<A
HREF="developersguidenode10.html#Xt96">7</A>] and it
uses the OSF/Motif widget set [<A
HREF="developersguidenode10.html#MotifProgGuide1.2">12</A>]. TCM can be used under
any X11 window manager. TCM has been ported by us to SunOS 4.1.x, Sun
Solaris 2.x, Linux 2.x, IRIX 6.x, AIX 4.x, HP-UX 10.x and OSF/1, But TCM is
portable to any Unix system that has a C++ compiler and has the development
libraries for X Windows and Motif (or <A NAME="tex2html3"
HREF="http://www.lesstif.org">LessTif</A>,
the free Motif clone).
TCM uses the Motif widget library together with the Xlib and Xt libraries
for its graphical user interface. These libraries have a C API.
Books on Motif programming which have had influence on TCM
are [<A
HREF="developersguidenode10.html#Brain92">1</A>,<A
HREF="developersguidenode10.html#Oreilly6-91">4</A>,<A
HREF="developersguidenode10.html#Young94">15</A>,<A
HREF="developersguidenode10.html#Young92">14</A>].
Books on Xlib and Xt programming which are used while writing TCM
are [<A
HREF="developersguidenode10.html#Oreilly1">8</A>,<A
HREF="developersguidenode10.html#Oreilly2">9</A>,<A
HREF="developersguidenode10.html#Oreilly4">10</A>,<A
HREF="developersguidenode10.html#Oreilly5">11</A>].
<P>
This document is a stepping stone for a designer/programmer who has access
to the TCM source code. It expects that you have knowledge about C++,
X/Motif and Unix. This document tries to offer:
<UL>
<LI>An aid for compiling and porting TCM.
<LI>An overview of the system architecture and the source code
organization. This should make it easier to understand the software
and to make it easier to write additions and modifications.
</UL>
<P>
This document is kept rather short intentionally, because it is not
possible to anticipate on every possible question or problem. Furthermore,
TCM is rapidly evolving so that many things would be quickly outdated
and each new release would be slowed down by a documentation update.
When you have any questions or comments about this document you are
advised to e-mail them to
<A NAME="tex2html4"
HREF="mailto:tcm@cs.utwente.nl"><TT>tcm@cs.utwente.nl</TT></A>
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<ADDRESS>
<I>Henk van de Zandschulp</I>
<BR><I>2003-01-07</I>
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