David, > Bilgin: is planning before hand what you had in mind? Yes, I want to use Timesheet and TimeEntry entities to plan in advance the working hours of employees. These two entities looks like enough for this purpose? You are right, this field seems redundant. The shifts can be retrieved using the fromDate and thruDate fields.
Hans, Can you tell me why you think that workefforts are more appropriate for planning in advance? Thanks to both of you.