Patent US 5,652,909

An autoprobe feature which illustrates the data output of each node as data propagates through a data flow program. As each node in the diagram executes or fires, a routine is invoked which displays the resultant data on the block diagram. Thus, a user can select the autoprobe feature and visually see the data flow out each node as the block diagram executes. Thus, the user can immediately determine if one node is providing incorrect output.