\chapter{Introduction}

\section{Problem Definition}
At the moment, there are two different GUI's for \sisac{} under development:
\begin{itemize}
\item{Java-Swing:} A desktop application, that connects to the \sisac{} server via RMI.
\item{AJAX:} A web application, that communicates with the \sisac{} server through the
HTTP protocol.
\end{itemize}
