Page 498 - Using MIS

466 Chapter 12 Information Systems Development

Existing Order Process
Operations Credit
Customer Salesperson Sales VP
Manager Manager

Prepare Quotation
Submit Order RFQ with Standard Terms

Standard
Respond to Quotation Submit Quotation
Quotation
Quotation Inventory DB
Response
Customer accept
the Quotation?
Item Counts
Revised No
Process Order Quotation
Response Prepare a Product Check for
Quotation with Yes Available Inventory
Requested Terms
Item
Order Allocations
Data
Submit Order to
Sucient
Operations Manager Inventory?
Revised for Review
Quantity No
Quotation Yes
Prepare a Revised Rejection Reject Order
Quantity Quotation
Allocate Inventory
Request Credit Approval
Approval Approve Order
Credit Request Check Customer
Credit Response Credit
Approved
Order Credit No
Approved?
Add Credit
Yes Exception to
Special Terms
Special Terms?
Rejected
Order
No
Accept Order Yes
Process
Request Special Special Terms Request Evaluate Special
Yes Terms Terms Request

Terms Special Terms Response
Accepted?
No

Reject Order
Figure 12-7
Existing Order Process

Q4 What Are the Phases in the Systems

Development Life Cycle (SDLC)?

The systems development life cycle (SDLC) is the traditional process used to develop in-
formation systems and applications. The IT industry developed the SDLC in the “school of
hard knocks.” Many early projects met with disaster, and companies and systems developers
sifted through the ashes of those disasters to determine what went wrong. By the 1970s, most