Representation of Lines and Blocks
The graphic language elements are drawn using graphic or semi graphic elements, as shown in the table below.No storage of data or association with data elements can be associated with the use of connectors; hence, to avoid ambiguity, connectors cannot be given any identifier.
| Feature | Example |
| Lines |    |
| Line crossing with connection |  |
| Blocks with connecting lines and unconnected pins |  |