Heinz Oswald

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improving the usability of high order Petri nets. This paper describes an environment for the construction and execution of requirement specifications for embedded systems. High order Petri nets are used as a notation for the specifications. The environment consists of a net brows-er, a net editor, an animated net simulator and a simulation engine. A(More)
The study which was conducted in 1990 in Berlin, Germany, compares two samples of 542 adolescents from West Berlin and 340 from East Berlin. The present investigation shows that the general trend toward sexual liberality among adolescents is continuing and that necessary processes of adolescent sexual development appear not to be influenced by the threat of(More)
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