Latest and finish start dates.

Dear all,

1.What is actually meant by latest and finish start dates?

2.In my maintenance order, when i am using my workcenter against each operations, the earliest start date, earliest end date, earliest start time, and its finish time is calculating based on the WORK not on DURATION. How it normally take ?

3.Even if we are using indian calendar in the workcenter (Also capacity uitilization is 100%) system is not calculating the actual time (Scheduled done manually also by click the scedule icon in the order screen.)

Regards,

Prasanna.