When defining scheduling missions, it is useful to understand the IOA Scheduling facility logic that determines whether to order a mission on a specific day. This logic is described below:
DAYS and DCAL parameters are checked independently and a first tentative scheduling decision is created.
Similarly, WDAYS and WCAL parameters are checked independently and a second tentative scheduling decision is created.
A third tentative scheduling decision is created based on the above two decisions and the AND/OR value linking them.
If DAYS and DCAL are not specified, this third scheduling decision is identical to the second scheduling decision. If WDAYS and WCAL are not specified, this third scheduling decision is identical to the first scheduling decision.
If CONFCAL and SHIFT are specified, the third scheduling decision is adjusted according to the CONFCAL and SHIFT criteria. The third decision (as adjusted) becomes the final scheduling decision.
The IOA Scheduling facility decides whether to schedule a mission based on the algorithm outlined above.
