/DFNConstant.java/1.1/Thu Dec  5 13:53:23 2002//
/DFNLambda.java/1.1/Thu Dec  5 13:53:23 2002//
/DFNOperator.java/1.1/Thu Dec  5 13:53:23 2002//
/DFNPort.java/1.1/Thu Dec  5 13:53:23 2002//
/DFNVariable.java/1.1/Thu Dec  5 13:53:23 2002//
/DFNode.java/1.2/Tue Feb 18 18:08:36 2003//
/DataflowInterpreter.java/1.2/Tue Feb 18 18:08:36 2003//
/GraphBuilder.java/1.2/Tue Feb 18 18:08:36 2003//
D
