\documentclass[a4paper,notitlepage]{report}

\usepackage[english]{babel}
\usepackage[utf8x]{inputenc}
\usepackage{fontenc}
\usepackage{lmodern}
\usepackage[colorlinks]{hyperref}

\usepackage{verbatim}
\usepackage{cleveref}
\usepackage{listings}

\author{M.~de Wever}
\title{UMCD design document - DRAFT}

\begin{document}

\maketitle

\tableofcontents

\include{umcd/abstract}

\include{umcd/introduction}
\include{umcd/communication_protocol}

%\include{gui2/introduction}
%\include{gui2/overall_design}
%\include{gui2/design_details}
%\include{gui2/creating_widgets_and_dialogs}

\appendix

%\include{gui2/files_for_the_widget}
%\include{gui2/files_for_the_window}

\end{document}