Reference no: EM132295055
1. Loop Plumbing Service (LPS) needs a “HR System.” The system is used by “HR Staff” and “HR Manager.” First, “HR Staff” enters “personnel data” into the “HR System.” The system saves the data into the “Personnel Records” data store in the system. For that, the system has the “Save personnel data” process. Second, “HR Manager” prints out “Personnel List” via the system. For that, the system uses the “Print personnel records” process. This process gets the data from the “Personnel Records” data store, and prints the list for “HR Manager.”
Draw a context diagram, and a DFD0 for the “HR System.”
Hint: The system has two users, two processes, and one data store.
2. Loop Plumbing Service (LPS) needs a “Customer Service Management System.” The system is used by “Service Staff” and “Service Manager.” First, “Service Staff” takes a call from each customer. After each call, “Service Staff” enters the profile of the customer into the system. The system uses the “Save customer profile” process to save the profile data in the “Customers” data store. Second, “Service Staff” enters the service request from the customer. The system uses the “Record service request” process to save each service request in the “Service Requests” data store. Third, “Service Staff” enters a service log after each service completion. The system uses the “Update service request” process to save the log in the “Service Requests” data store. Lastly, “Service Manager” prints “Daily Activity Report” via the system at the end of each day. The system uses the “Print daily activity report” process to print the report. This process gets data from the “Customers” and “Service Requests” data stores, and prints out the report for “Service Manager.”
Draw a DFD0 for the “Customer Service Management System.”
Hint: The system has two users, four processes, and two data stores.