added architecture

@@ -8,6 +8,12 @@
 
 \usepackage{tikz}
 
+\tikzstyle{box}[yellow]=[draw=#1!70!black,fill=#1!50,very thick,
+  rounded corners,fill opacity=.25,draw opacity=.5,minimum height=2,outer sep=10pt]
+\tikzstyle{dots}[yellow]=[color=#1!70!black,opacity=.25]
+\tikzstyle{layer}[yellow]=[above,rotate=90,#1!70!black,opacity=.75]
+\tikzstyle{label}=[below right=1mm,anchor=base west]
+
 \parindent=0pt
 \setbeamertemplate{navigation symbols}{}
 
@@ -31,9 +37,15 @@
       \foreach \x in {1,...,20} {
         \node at (\x,.5) {\x};
         }
+      \foreach \x in {1,...,20} {
+        \node at (\x,29.5) {\x};
+        }
       \foreach \y in {1,...,29} {
         \node at (.5,\y) {\y};
         }
+      \foreach \y in {1,...,29} {
+        \node at (20.5,\y) {\y};
+        }
     \end{tikzpicture}
   \end{textblock}
 
@@ -41,6 +53,97 @@
   %% title & logos
   %%
 
+  \begin{textblock}{4}(1,1)
+    \includegraphics[height=38mm]{../pix/logo-snakes}
+  \end{textblock}
+
+  \begin{textblock}{9}(5,1)
+    {\Large\bfseries a high-level Petri nets library}\\[10pt]
+    {\large Franck Pommereau}\\[16pt]
+    IBISC/COSMO, university of Évry/Paris-Saclay\\[8pt]
+    \href{mailto:franck.pommereau@ibisc.univ-evry.fr}%
+         {franck.pommereau@ibisc.univ-evry.fr}\\
+    \href{https://snakes.ibisc.univ-evry.fr}%
+         {snakes.ibisc.univ-evry.fr}
+  \end{textblock}
+
+  \begin{textblock}{6}(14,1)
+    \begin{tikzpicture}[yscale=.9]
+      \node at (-2,0) {\includegraphics[width=35mm, height=35mm,
+          keepaspectratio=true]{../pix/logo-ibisc}};
+      \node at (1,1) {\includegraphics[width=20mm, height=20mm,
+          keepaspectratio=true]{../pix/logo-ueve}};
+      \node at (1,-1) {\includegraphics[width=20mm, height=20mm,
+          keepaspectratio=true]{../pix/logo-genopole}};
+    \end{tikzpicture}
+  \end{textblock}
 
+  %%
+  %% architecture
+  %%
+
+  \begin{textblock}{8}(5,5.5)
+    \begin{tikzpicture}[yscale=-1,xscale=1.1]
+      % core library
+      \draw[box] (.1,.1) rectangle (5.9,1.9);
+      \draw[box=orange] (6.1,.1) rectangle (7.9,1.9);
+      \node[dots=orange] at (8.5,1) {$\bullet\bullet\bullet$};
+      \node[layer=orange] at (0,1) {core library\strut};
+      \node[label] at (0,.5) {nets};
+      \node[label,text width=8cm,scale=.6] at (.1,1) {\itshape{%
+          Petri nets, places, transitions, arcs,\\
+          markings, marking graphs, \dots}};
+      \node[label] at (6,.5) {simul};
+      \node[label,text width=20mm,scale=.6] at (6.1,1) {\itshape{%
+          interactive simulation}};
+      % plugins
+      \draw[box=green] (.1,2.1) rectangle (1.9,3.9);
+      \draw[box=green] (2.1,2.1) rectangle (3.9,3.9);
+      \draw[box=green] (4.1,2.1) rectangle (5.9,3.9);
+      \draw[box=green] (6.1,2.1) rectangle (7.9,3.9);
+      \node[dots=green] at (8.5,3) {$\bullet\bullet\bullet$};
+      \node[layer=green] at (0,3) {plugins\strut};
+      \node[label] at (0,2.5) {ops};
+      \node[label,text width=24mm,scale=.6] at (.1,3) {\itshape{%
+          PBC\slash PNA \& M-nets\\ compositions}};
+      \node[label] at (2,2.5) {sync};
+      \node[label,text width=26mm,scale=.6] at (2.1,3) {\itshape{%
+          transitions\\ synchronisation}};
+      \node[label] at (4,2.5) {gv};
+      \node[label,text width=26mm,scale=.6] at (4.1,3) {\itshape{%
+          drawing with GraphViz}};
+      \node[label] at (6,2.5) {pids};
+      \node[label,text width=26mm,scale=.6] at (6.1,3) {\itshape{%
+          dynamic\\ process spawn\slash kill}};
+      % utilities
+      \draw[box=blue] (.1,4.1) rectangle (3.9,5.9);
+      \node[dots=blue] at (4.5,5) {$\bullet\bullet\bullet$};
+      \node[layer=blue] at (0,5) {utilities\strut};
+      \node[label] at (0,4.5) {abcd};
+      \node[label,text width=66mm,scale=.6] at (.1,5) {\itshape{%
+          compiler\slash simulator for the\\ Asynchronous Box Calculus\\
+          with Data}};
+      % sep
+      \draw[densely dotted,gray,thick](-.9,6) -- (9,6);
+      \node[above left,gray,scale=.7] at (9,6) {included in SNAKES};
+      \node[below left,gray,scale=.7] at (9,6) {not in SNAKES anymore};
+      % external tools
+      \draw[box=red] (.1,6.1) rectangle (3.9,7.9);
+      \node[dots=red] at (4.5,7) {$\bullet\bullet\bullet$};
+      \node[layer=red,text width=2cm,text centered] at (0,7) {external\\[-1mm] tools};
+      \node[label] at (0,6.5) {neco};
+      \node[label,text width=66mm,scale=.6] at (.1,7) {\itshape{%
+          net compiler,\\ state-space computation\\ \& LTL model-checking}};
+      \node at (3,6.5) {\includegraphics[height=5mm]{../pix/neco}};
+    \end{tikzpicture}
+  \end{textblock}
+
+  %%
+  %% core
+  %%
+
+  \begin{textblock}{4}(1,5.5)
+  \end{textblock}
+  
 \end{frame}
 \end{document}