How to attach assignment Details Automatically....?

Hi...Gud Afternoon to all,

Issue : For new employees; the payroll should default the general information in respect to business groups as per the information captured when the employee is hired, The system should also attach standard deduction elements e.g NSSF, NHIF and Benevolent fund to all employees except temporary staff. It should also default other general information like salary bais to Monthly salary.

Thanks & Regards

T.srinivas