Shift Master :
The Master Record to keep track on each shift and their timings.
There is some extra setting such as End of Next day and Effective for Shift Rotation.
1) End of Next day:- The Shift may started day before and it may closes at next
day. in such cases you must check mark the End on next day option.
2) Effective for Shift Rotation:- This will enable you to effect regular on rotation
[For example: if employee is enable for shift changing on a specified day. before
shift change he may be on day shift, after shift rotation process he may assigns night
shift as per rule defined.So here 2 shift are considered one is Day shift and another
is Night shift. So that if such case the Day Shift and Night Shift should be defined
as Effective for shift rotation.]