More DFDs

1
More DFDs

• Class 14

2
More examples

• Payroll system
• Real Estate Inc Buyers System

3
Day 14 Survey example

• XYZ Corporation would like to implement a new
  payroll system to automate the current system.
  Currently, employees fill out a time record
  indicating the hours they worked. Gross pay is
  calculated based on each employees hourly rate
  and the hours they worked. Net pay is what they
  are actually paid after withholding deductions
  and taxes are taken out. Each employee receives
  a check with their net pay.

4
Real Estate System (Day 14 ex)

• Real Estate Inc (REI) works with two types of
  buyers. Some buyers have an interest in one
  specific house. In this case, REI prints
  information from its files, which the real estate
  agent uses to help show the house to the
  potential buyer. Other buyers seek REIs advice
  in finding a house that meets their needs. In
  this case, the buyer completes a buyer
  information form that is entered into a buyer
  file, and REI real estate agents use this
  information to search REIs houses-for sale file
  and the multiple-listing service for houses that
  meet their needs. The results of these searches
  are printed and used to help the real estate
  agent show houses to the buyer.