). The statement
tool.item selects the result labeled item of the
tool labeled tool to be associated with an output
port. This means the port named output-port-name delivers the
result item which was produced by the tool labeled
tool. To associate a certain component of an
operating-point with an output port, the optional element
component is available to identify that component. Assuming
that the current through the drain contact of a MOS device is stored
under the name Id in the operating point, it can be mapped to
an output port by specifying Id for component.