Table 3 The GP terminal and function sets.
Node name | Description |
|---|---|
NOW | The current time |
PT | Processing time of the operation |
NPT | Processing time of the next operation |
OWT | The waiting time of the operation |
NOIQ | Number of operations in the current queue |
NOINQ | Number of operations in the next queue |
WIQ | Work in the current queue |
WINQ | Work in the next queue |
MRT | Ready time of the machine |
ORT | Ready time of the operation |
NOR | Number of operations remaining |
WKR | Work remaining (including the current operation) |
DD | Due date of the job |
W | Weight of the job |
SL | Slack time of the job |
FDD | Flow due date of the operation |
Function set |  + , –,  × , /, max, min |
