<sect1 id="intro-repoconvs-layout">

    <title>The Repository Layout</title>

    <para>

        &TCAR; is supported by 

        url="http://subversion.tigris.org/">Subversion</ulink>, a

        version control system which allows you to keep old versions

        of files and directories (usually source code), keep a log of

        who, when, and why changes occurred, etc., like CVS, RCS or

        SCCS.

    </para>

    <para>

        When using Subversion there is one <quote>source

        repository</quote> and many <quote>working copies</quote> of

        that source repository. The working copies are independent one

        another, can be distributed all around the world and provide a

        local place for designers, documentors, translators and

        programmers to perform their work in a descentralized way.

        The source repository, on the other hand, provides a central

        place for all independent working copies to interchange data

        and provides the information required to permit extracting

        previous versions of files at any time.

    </para>

    <para>

        &TCAR; is organized through a convenctional

        <quote>trunk</quote>, <quote>branches</quote> and

        <quote>tags</quote> layout.

    </para>

</sect1>