Priority Calculation 
Use
At task creation and task selection, priorities are calculated for each priority model entity.
Features
TRM calculates the priority of each entity based on the following calculations:
· Priority value of a parent entity = å [Priority value(Children) x Normalized weighting]
· Priority value of child entity which is not also a parent = system-generated or user-specified value
Example
Winnie Chung, the warehouse manager, assigns weighting factors for priority mode Morning Shift as follows:
|
Entity |
Weighting Factor |
|
Latest Starting Date (LSD) |
45 |
|
Route |
30 |
|
Distance from Source |
40 |
|
Resource – handling unit |
25 |
|
Resource - WA |
25 |
|
Resource type - level |
25 |
|
Static & Synchro |
20 |
|
Static |
43 |
|
Synchro |
30 |
|
Activity |
18 |
|
Host |
24 |
Rodney Washington, a forklift driver in the warehouse, selects a forklift and logs on to the system as a resource. When he chooses a system-guided option from the menu on his presentation device, the system generates priority values for tasks A and B. The following table shows both the system-generated and user-specified priority values:
|
Entity |
Priority Values |
|
|
Task A |
Task B |
|
|
Latest Starting Date (LSD) |
20 |
25 |
|
Distance from source |
12 |
8 |
|
Res – handling unit |
30 |
27 |
|
Res - WA |
10 |
12 |
|
Res type - level |
22 |
14 |
|
Activity |
12 |
12 |
|
Host |
15 |
15 |
|
Synchro |
20 |
15 |
The total priorities of tasks A and B are calculated as follows:
|
Priority Entities |
Calculation |
Task A Priority |
|
LSD |
Value (LSD) |
20 |
|
Distance from source |
Value (Distance from Source) |
12 |
|
Res - HU |
Value (Res – HU) |
30 |
|
Res - WA |
Value (Res – WA) |
10 |
|
Res type - level |
Value (Res type – Level) |
22 |
|
Activity |
Value (Activity) |
12 |
|
Host |
Value (Host) |
15 |
|
Synchro |
Value (Synchro) |
20 |
|
Route |
40/115*12 + 25/115*30 + 25/115*10 + 25/115*22 |
17.6 |
|
Static |
18/42*12 + 24/42*15 |
13.7 |
|
Static & Synchro |
43/73*13.7 + 30/73*20 |
16.3 |
|
Total Task Priority |
45/95*20 + 30/95*17.6 + 20/95*16.3 |
18.5 |
|
Priority Entities |
Calculation |
Task B Priority |
|
LSD |
Value (LSD) |
25 |
|
Distance from source |
Value (Distance from Source) |
8 |
|
Res - HU |
Value (Res – HU) |
27 |
|
Res - WA |
Value (Res – WA) |
12 |
|
Res type - level |
Value (Res type – Level) |
14 |
|
Activity |
Value (Activity) |
12 |
|
Host |
Value (Host) |
15 |
|
Synchro |
Value (Synchro) |
15 |
|
Route |
40/115*8 + 25/115*27 + 25/115*12 + 25/115*14 |
14.3 |
|
Static |
18/42*12 + 24/42*15 |
13.7 |
|
Static & Synchro |
43/73*13.7 + 30/73*15 |
14.2 |
|
Total Task Priority |
45/95*25 + 30/95*14.3 + 20/95*14.2 |
19.3 |
Rodney receives task B as his first task since it has a higher priority than task A.
See Also:
