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>2.1. What is Bugzilla?</H1
><P
>&#13;    Bugzilla is a bug- or issue-tracking system. Bug-tracking
    systems allow individual or groups of developers effectively to keep track
    of outstanding problems with their product. 
    Bugzilla was originally
    written by Terry Weissman in a programming language called TCL, to
    replace a rudimentary bug-tracking database used internally by Netscape
    Communications. Terry later ported Bugzilla to Perl from TCL, and in Perl
    it remains to this day. Most commercial defect-tracking software vendors
    at the time charged enormous licensing fees, and Bugzilla quickly became
    a favorite of the open-source crowd (with its genesis in the open-source
    browser project, Mozilla). It is now the de-facto standard
    defect-tracking system against which all others are measured.
    </P
><P
>Bugzilla boasts many advanced features. These include: 
    <P
></P
><UL
><LI
><P
>Powerful searching</P
></LI
><LI
><P
>User-configurable email notifications of bug changes</P
></LI
><LI
><P
>Full change history</P
></LI
><LI
><P
>Inter-bug dependency tracking and graphing</P
></LI
><LI
><P
>Excellent attachment management</P
></LI
><LI
><P
>Integrated, product-based, granular security schema</P
></LI
><LI
><P
>Fully security-audited, and runs under Perl's taint mode</P
></LI
><LI
><P
>A robust, stable RDBMS back-end</P
></LI
><LI
><P
>Web, XML, email and console interfaces</P
></LI
><LI
><P
>Completely customisable and/or localisable web user
        interface</P
></LI
><LI
><P
>Extensive configurability</P
></LI
><LI
><P
>Smooth upgrade pathway between versions</P
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