A high-level model is a textual file consisting of a number
of lines. Each line introduces either a node or an arc
according to the following syntax:
node_name
to define a node named "node_name" with no dependencies,
node_1 node_2
to define two nodes with a directional arc from "node_1" to "node_2",
node_1 node_2 type
to define two nodes with a directional arc
from "node_1" to "node_2" with a particular type.
A line beginning with a # (in the first column) is a comment line.
Nodes may be introduced simply by defining arcs.
An example is available here.
Last modified: June 28, 1996
Gail Murphy