Hi Varma,
1. Shift early factor is the percentage of shift time if we call the WO earlier than it's called date. Usually by using manual call to the scheduled WO. The next scheduled WO will be shift early based on percentage input.
2. Tolerance (the first one) is the percentage of which we can tolerate to call scheduled WO earlier
3. Shift late factor is the percentage of shift time if somehow the scheduled WO is hold (usually due to the required completion flag is tick, then the scheduled WO will be hold until the previous WO is closed). The next scheduled WO will be shift late based on percentage input.
4. The tolerance (the second one) is the percentage of which we can tolerate to late WO callled.
Example:
Maintenance plan have parameter:
- Shift early factor : 90%
- Tolerance: 10%
- Shift late factor: 80%
- Tolerance: 10%
- Cycle period: 1 month (30 days)
- 1st WO date: 1 - 04 - 2012 (call date); 3 - 04 - 2012 (plan date)
- 2nd WO date: 1 - 05 - 2012 (call date); 3 - 05 - 2012 (plan date)
- 3rd WO date: 1 - 06 - 2012 (call date); 3 - 06 - 2012 (plan date)
in that case, the tolerance parameter will be 10% x 30 days = 3 days
If we call the 1st WO 1-3 days earlier, the 2nd and 3rd WO will not shifted.
If we call the 1st WO 4 or more days earlier, then the 2nd and 3rd WO (Call date and plan date) will shifted (90% x number of days earlier)
If the required completion is tick, and the 1st WO hasn't been TECO until 1 or 2 or 3 May 2012, then the 2nd and 3rd WO will not be shifted (the late not more than 3 days)
if the required completion is tick, and the 1st WO hasn't been TECO until 4 or more days on May 2012, then the 2nd WO will be called immediately after the 1st WO is TECO, and the 3rd WO (call date and plan date) will be shifted (80% x number of days late).
Hope this is understandable and useful.
Regards
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