digraph agentintelligent {
  G [label="Agent", shape=oval];
  E [label="Environnement", shape=rect];
  S [label="Capteurs", shape=parallelogram];
  A [label="Effecteurs", shape=parallelogram];
  P [label="Mesure de performance", shape=diamond]
  P -> G
  S -> G;
  G -> A;
  E -> S [label="Perception"];
  A -> E [label="Actions"];
  { rank=same;
    E A S
  }
}