An expressive mapping is the basis for a well-defined semantics for a network diagram. For example, in Figure 12 the bidirectional relationship between the shape of a node symbol and the type of a network-model vertex is specified in line 2.
|Title||:||Proceedings of the ... IEEE Workshop on Visual Languages|
|Author||:||Institute of Electrical and Electronics Engineers, University of Pittsburgh, VL Foundation|
|Publisher||:||IEEE Computer Society - 1990|