experiment.tex

\documentclass[11pt,final,usepdftitle=false]{beamer}
\mode<presentation>
%\usetheme{goettingen}
\usepackage{tikz}
\usepackage{tikz-bpmn}
\usetikzlibrary{positioning}


\begin{document}
\begin{frame}{Deployment process}
  \center
  \footnotesize
  \begin{tikzpicture}[node distance=1.2em]
    \tikzstyle{every task} = [thick,fill=white]
    \tikzstyle{every sequence} = [thick]
    \tikzstyle{every gateway} = [thick,fill=white]
    \tikzstyle{every event} = [thick,fill=white]
    \tikzstyle{end event} = [event,line width=2.5pt,fill=white]

    \node[event] (start) {};
    \node[task,node distance=3em,right=of start] (updglite) { Update SL and \\ add gLite RPM \\ repositories \\ on all nodes };
    \draw[sequence,->] (start) -- (updglite);
    \node[task,node distance=3em,right=of updglite] (ca) { Create \\ CA };
    \draw[sequence,->] (updglite) -- (ca);
    \node[task,node distance=3em,right=of ca] (vo) { Create VO and \\configure VOMS};
    \draw[sequence,->] (ca) -- (vo);

    \node[gateway,node distance=10em,below=of start] (pg) {+};
    
    \draw[sequence,->] (vo) -- ++(6em,0) -- ++(0,-5em) node(foo){} -- (pg |- foo) -- ++(-2em,0) node(foo2){} -- (foo2 |- pg) -- (pg);
    
    \node[task,above right=of pg] (bdii) {Configure \\ BDII};
    \draw[sequence,->] (pg) |- (bdii);
    \node[gateway,right=of bdii] (pg2) {+};
    \draw[sequence,->] (bdii) -- (pg2);
    \node[task,right=of pg2] (wn) {Configure \\ worker nodes\\ and batch};
    \draw[sequence,->] (pg2) -- (wn);
    \node[align=center,below=of wn] (etc2) { {\Large \ldots } \\ \small (on each cluster)};
    %	\node[below right=of pg2] (etc2-target) {};
    \draw[sequence,->,loosely dashed] (pg2) |- (etc2);
	\node[gateway,below right=of wn] (pg3) {+};
	\draw[sequence,->,loosely dashed] (etc2) -| (pg3);
	\draw[sequence,->] (wn) -| (pg3);
	\node[task,right=of pg3] (ce) {Configure \\ CE};
	\draw[sequence,->] (pg3) -- (ce);
	\node[task,right=of ce] (ui) {Configure \\ UI};
	\draw[sequence,->] (ce) -- (ui);
	\node[gateway,right=of ui] (pg4) {+};
	\draw[sequence,->] (ui) -- (pg4);
	\node[end event,right=of pg4] (end) {};
	\draw[sequence,->] (pg4) -- (end);


	\node[align=center,below=of etc2] (etc1) { {\Large \ldots } \small (on each site)};
	\draw[sequence,->,loosely dashed] (pg) |- (etc1);
	\draw[sequence,->,loosely dashed] (etc1) -| (pg4);
  \end{tikzpicture}
     \end{frame}

\end{document}