\begin{figure*}
\centerline{\includegraphics[width=0.8\textwidth,angle=0]{dataproductimages004.pdf}}
\caption{\noindent A summary of how the different tables are related.  The rectangular boxes with words inside represent the different table names.  The ovals with words inside represent the column names to use to join the tables.  Black lines connect table names to columns (i.e., {\em Detection} has a line to \texttt{ObjID} which has a line to {\em StackObjectThin}) - this shows that {\em Detection} can be joined to {\em StackObjectThin} using \texttt{ObjID}).  The grey rounded boxes represent different stages of data processing, which corresponds to different stages of loading into the database.  Tables within the grey boxes are related; connections to the (grey) metadata tables are shown in Figure~\ref{fig:objidmap}.  The tables that are not in grey rounded boxes represent system metadata, metadata that describes the \PS\ system as well as flag information.}
\label{fig:objidmap}
\end{figure*}
