Sales people and installers submit their weekly timesheet which includes, staff ID, number of standard hours worked in the week and overtime (which must be signed off by a manager) to admin staff for recording. Staff hourly pay is dependent on their position and level. Additionally, sales and installers may claim for expenses (however not all expenses are legitimate work claims), these expenses need to be taken into consideration and staff may be given reimbursed in their weekly pay for all or a portion of expenses incurred. Expense claims may include petrol, purchase of equipment, lunch, accommodation, mobile phone and parking. You have been hired by Allan to create an Information System Description to determine the weekly pay of sales people and install