\begin{tikzpicture}[shorten >=1pt,node distance=3cm,on grid,auto]

	\node[rectangle state,initial] (q_0) {potentiell};
	\node[rectangle state] (q_1) [right=3.8cm of q_0] {aktiv};
	\node[rectangle state] (q_2) [below=1.5cm of q_1] {abgeschlossen};
	\node[rectangle state, accepting] (q_3) [right=5cm of q_2] {persistent};
	\node[rectangle state](q_4) [above right=1.5cm and 2.5cm of q_1] {gescheitert};
	\node[rectangle state](q_5) [right=5cm of q_1] {wiederholbar};
	\node[rectangle state, accepting](q_6) [right=5cm of q_4] {aufgegeben};
	\path[->]
	(q_0) edge node {inkarnieren} (q_1)
	(q_1) edge node {beenden} (q_2)
	(q_2) edge node {festschreiben} (q_3)
	(q_1) edge node {abbrechen} (q_4)
	(q_4) edge node {zurücksetzen} (q_6)
	(q_4) edge node {zurücksetzen} (q_5)
	(q_5) edge node {neustarten} (q_1);
\end{tikzpicture}