diff --git a/OARiNZ/DIY/DIY_spec.tex b/OARiNZ/DIY/DIY_spec.tex
index eba7ca1..02ddeb1 100755
--- a/OARiNZ/DIY/DIY_spec.tex
+++ b/OARiNZ/DIY/DIY_spec.tex
@@ -9,6 +9,9 @@
 \usepackage[margin=1in]{geometry}
 
 
+\graphicspath{{images/}}
+
+
 \renewcommand{\ttdefault}{blg}
 
 
@@ -87,8 +90,8 @@
 Downloadable disk images would also be made available.
 
 The remainder of this document discusses various design and
-implementation options, the proposed architecture for the solution, and
-the implementation plan.
+implementation options, typical usage scenarios, and the implementation
+plan.
 
 
 \section{Design and implementation options}
@@ -385,7 +388,41 @@
 \end{itemize}
 
 
-\section{Proposed architecture}
+\section{Typical usage scenarios}
+
+
+\subsection{Bare metal installation}
+
+\begin{center}
+	\includegraphics{bare_metal}
+\end{center}
+
+\noindent In this scenario, a repository implementor wishes to bootstrap
+a complete repository installation on new hardware. They boot from the
+repository live CD (1), which installs the Ubuntu operating system along
+with all the required packages for EPrints (2). The latter will probably
+also include the repository configurator and configuration items list,
+as implied by the dashed arrows at bottom right. After the base
+installation completes (a reboot may be required), the operating system
+(3) and repository configurators (4) are executed in sequence.
+
+
+\subsection{Installation on existing system}
+
+\noindent In this scenario, a repository implementor wishes to install a
+repository on an existing server, which already has an operating system
+and associated software. They insert the installation CD and launch the
+installer (1).
+
+
+\subsection{Reconfiguring an existing system}
+
+\noindent In this scenario, a repository administrator wishes to
+reconfigure their existing installation, for example, to create new
+repository or to change the settings of an existing repository. They
+launch the repository configurator that was installed on the server
+during the initial installation (1).
+
 
 
 \section{Implementation plan}