Table of Definitions
The following is a Table of Definitions for the articles describing the Vortex technology.
# |
Item Description |
Variable |
Formula / Explanation |
1 |
Flow Time for WO1 through WCN-1 |
tWO1, n-1 |
|
2 |
Transit Time for WO1 from WCN-1 to WCN |
tT,N-1,N |
This is a constant value entered by admin staff. |
3 |
Remaining Clear Time of the WO in process at WCN with the least remaining Clear Time. |
tR,N |
|
4 |
Sum of the Clear Times for WCN of all WO's in its queue. |
QN |
|
5 |
Sum of the Clear Times at WCN for all authorized UA WOs |
YN |
|
6 |
Number of capacity units within WCN |
CN |
This is a constant value entered by admin staff. |
7 |
Remaining Clear Time at WCN-1 for the WO with the least remaining Clear Time |
tR,N-1 |
|
8 |
Sum of the Clear Times for WCN-1 for all authorized UA WOs in the WCN-1 queue. |
tQ,N-1 |
|
9 |
Number of capacity units within WCN-1 |
CN-1 |
This is a constant value entered by admin staff. |
10 |
Batch Size |
B |
This is a constant value entered by admin staff. If the WO will not be serially split, the B is equal to the WO # Units. |
11 |
Number of Operations within the WC for a given WO |
ON |
This is a constant value based on the WO’s Work Flow, or Routing. |
12 |
Clear Time |
tC |
the elapsed processing time required for a WO to complete the first operation in a WC. |
13 |
Flush Time |
tF |
The elapsed processing time required for a WO to complete all operation subsequent to the first operation. |
14 |
Max Split Ratio |
RC |
|
15 |
Flow Time Ratio |
R |
The ratio of Flow Time to Standard Process Hours in a balanced line. |
16 |
Clear Time for WCN for WO1. |
WN |
- the elapsed processing hours required to complete WO1 from start to finish at a given WC. This is Clear Time + Flush Time. If a WC has a single operation, Flow Time is equal to Clear Time, and R=1. |
17 |
WCN Queue Policy |
XN |
|
18 |
WO Quantity |
# Units |
This is a property of the WO that is initially provided with the WO details, but may change if defects arise during production. |
19 |
Standard Hours per Unit |
HPU |
This is a property of the WO that varies per WC and represents the total standard work hours per unit for the WC. |
20 |
Operation Hours per Batch |
OHPB |
|
21 |
WO Flow Time |
WOFT |
|
22 |
WO Standard Hours |
WOSH |
|
23 |
Queued Hours |
Q |
Sum of Flow Times for all WOs in a WC Queue. |
24 |
UA Authorized Hours |
Y |
Sum of Flow Times for a WC of all WOs with open PTs at UA WCs. |
25 |
Workflow |
refers to the sequence of defined operations required to convert raw materials into a finished unit. This is also commonly known as a routing. |
|
26 |
Work Center |
WC |
an organization of resources that facilitates the performance of an operation or plurality of operations in a production Workflow. |
27 |
Work Order |
WO |
refers to a set of similar units to be processed as a group at a WC. |
28 |
Upstream Adjacent |
UA |
refers to a WC that is next prior to a given WC in a Workflow, i.e, WCN-1 would be UA to WCN. |
29 |
Pull-Tag |
PT |
is a work authorization property assigned to a WO. Work may be performed on a WO if, and only if, a PT has been assigned to it and the PT is in an Open state. |
30 |
Work Order One |
WO1 |
the WO that is UA, has been assigned the highest priority relative to other UA WOs, and not yet assigned a PT. |
31 |
Work Center N-1 |
WCN-1 |
the WC in which WO1 is queued. |
32 |
Balanced Line |
a sequence of processing operations, each of which requires the same time to complete. |