A payslip is a collection of paylines for a specific tutor, generated at one time. They can be altered until exported after which the numerical data within the paylines is immutable. Payslips are generated either from a specific set of classes, or across the whole college. In either case, the user specifies an end-date and paylines are only generated for payments until that date.

 
        public 
        Payslip
     {
}