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\documentclass{article}
\usepackage{german}
\setlength{\textwidth}{130mm}
\begin{document}
\setlength{\unitlength}{2.0mm}
\newsavebox{\PROZESS}
\savebox{\PROZESS}{\begin{picture}(0,0)\thicklines
\put(-6,-3){\framebox(12,6){}}
\end{picture}}
\newsavebox{\EINAUSGABE}
\savebox{\EINAUSGABE}{\begin{picture}(0,0)\thicklines
\multiput(-6,-3)(10,0){2}{\line(1,3){2}}
\multiput(-6,-3)(2,6){2}{\line(1,0){10}}
\end{picture}}
\newsavebox{\IFBOX}
\savebox{\IFBOX}{\begin{picture}(0,0)\thicklines
\multiput(-5,0)(5,-3){2}{\line(5,3){5}}
\multiput(-5,0)(5,3){2}{\line(5,-3){5}}
\end{picture}}
\newsavebox{\FUNCTION}
\savebox{\FUNCTION}{\begin{picture}(0,0)\thicklines
\put(0,0){\oval(12,4)}
\end{picture}}
\newsavebox{\TTIE}
\savebox{\TTIE}{\begin{picture}(0,0)\thicklines
\put(0,0){\circle*{0.4}}
\put(-5,0){\vector(1,0){5}}
\put(5,0){\vector(-1,0){5}}
\put(0,0){\line(0,-1){1}}
\end{picture}}
\newsavebox{\LTIE}
\savebox{\LTIE}{\begin{picture}(0,0)\thicklines
\put(0,2){\vector(0,-1){2}}
\put(0,1.5){\circle*{0.4}}
\put(5,1.5){\vector(-1,0){5}}
\end{picture}}
\newsavebox{\IFTHENELSE}
\savebox{\IFTHENELSE}{\begin{picture}(0,0)\thicklines
\multiput(-13,0)(26,0){2}{\usebox{\PROZESS}}
\put(0,0){\usebox{\IFBOX}}
\put(0,5){\vector(0,-1){2}}
\put(-5,0){\vector(-1,0){2}}
\put(5,0){\vector(1,0){2}}
\put(0,-4){\usebox{\TTIE}}
\multiput(-13,-3)(26,0){2}{\line(0,-1){1}}
\put(-13,-4){\line(1,0){10}}
\put(13,-4){\line(-1,0){10}}
\end{picture}}
\newsavebox{\DOWHILE}
\savebox{\DOWHILE}{\begin{picture}(0,0)\thicklines
\put(0,0){\usebox{\IFBOX}}
\put(5,0){\vector(1,0){2}}
\put(13,0){\usebox{\PROZESS}}
\put(13,3){\line(0,1){1.5}}
\put(0,3){\usebox{\LTIE}}
\put(13,4.5){\line(-1,0){10}}
\end{picture}}
\newsavebox{\DOUNTIL}
\savebox{\DOUNTIL}{\begin{picture}(0,0)\thicklines
\put(0,0){\usebox{\PROZESS}}
\put(13,0){\usebox{\IFBOX}}
\put(6,0){\vector(1,0){2}}
\put(13,3){\line(0,1){1.5}}
\put(13,4.5){\line(-1,0){10}}
\put(0,3){\usebox{\LTIE}}
\end{picture}}
\noindent
\begin{picture}(65,10.5)\footnotesize
\put(0,8.5){\tt PROZESS}
\put(6,4){\usebox{\PROZESS}}
\put(6,4){\makebox(0,0){$+$}}
\put(16,8.5){\tt EIN/AUSGABE}
\put(22,4){\usebox{\EINAUSGABE}}
\put(22,4){\makebox(0,0){$+$}}
\put(32,8.5){\tt IFBOX}
\put(37,4){\usebox{\IFBOX}}
\put(37,4){\makebox(0,0){$+$}}
\put(46,8.5){\tt FUNCTION}
\put(52,5){\usebox{\FUNCTION}}
\put(52,5){\makebox(0,0){$+$}}
\put(46,0){\tt TTIE}
\put(57,1){\usebox{\TTIE}}
\put(60,8.5){\tt LTIE}
\put(60,5){\usebox{\LTIE}}
\end{picture}
\noindent
\begin{picture}(38,11)\footnotesize
\put(0,9.5){\tt IFTHENELSE}
\put(19,5){\usebox{\IFTHENELSE}}
\put(19,5){\makebox(0,0){$+$}}
\put(6,5){\makebox(0,0){$(+)$}}
\put(6,3.0){\makebox(0,0)[b]{(-13,0)}}
\put(32,5){\makebox(0,0){$(+)$}}
\put(32,3.0){\makebox(0,0)[b]{(13,0)}}
\end{picture}
\hfill
\begin{minipage}[b]{50mm}\small
Anmerkung:\\
Das +-Zeichen kennzeichnet den Bezugspunkt f"ur das
Gesamtsymbol, (+) den Bezugspunkt des Teilsymbols,
relativ zu +. LE = 2\,mm
\end{minipage}
\noindent
\begin{picture}(60,12)\footnotesize
\put(0,10){\tt DOWHILE}
\put(5,4){\usebox{\DOWHILE}}
\put(5,4){\makebox(0,0){$+$}}
\put(18,4){\makebox(0,0){$(+)$}}
\put(18,2.0){\makebox(0,0)[b]{(13,0)}}
\put(35,10){\tt DOUNTIL}
\put(41,4){\usebox{\DOUNTIL}}
\put(41,4){\makebox(0,0){$+$}}
\put(54,4){\makebox(0,0){$\scriptstyle(+)$}}
\put(54,2.5){\makebox(0,0)[b]{\scriptsize(13,0)}}
\end{picture}
\noindent
Die vorstehenden Symbole nun zu folgendem Bild zusammengesetzt:
\noindent
\begin{picture}(65,28)\thicklines
\put(25,25){\usebox{\FUNCTION}}
\put(25,23){\vector(0,-1){2}}
\put(25,18){\usebox{\IFBOX}}
\put(20,18){\line(-1,0){15}}
\put(5,18){\line(0,-1){3}}
\put(5,11){\usebox{\DOWHILE}}
\put(30,18){\line(1,0){15}}
\put(45,18){\line(0,-1){3}}
\put(45,11){\usebox{\IFTHENELSE}}
\put(45,6){\line(-1,0){16}}
\put(5,8){\line(0,-1){2}}
\put(5,6){\line(1,0){16}}
\put(25,6){\usebox{\TTIE}}
\put(25,6){\line(0,-1){2}}
\put(25,2){\usebox{\FUNCTION}}
\put(35,20){\framebox(30,7){\parbox{58mm}{\footnotesize
Bei der Erzeugung von Flu"sdiagrammen werden die Symbole
zun"achst ohne Text zusammengef"ugt und der Text
erst dann eingef"ugt, wenn das Diagramm stimmt.}}}
\end{picture}
\end{document}
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