The Scenario:

You are designing a workflow process to handle a purchase requisition for your organisation. When an employee creates a purchase requisition, his/her supervisor must approve it. When an approved purchase requisition reaches the purchasing department, a purchasing agent evaluates the record, and then performs one of the following steps:

• Rejects the requisition
• Creates a request for quotation to receive bids for the purchase
• Creates a purchase order from the requisition

The purchase requisition contains name, total price, quantity, and purpose (assume that the requisition is for one type of items). Depending on the price, additional approval may be need as described below.

Type D purchase requisition:

If the total price exceeds $5,000, the requisition then requires the approval of the chief financial officer (after the approval of the vice president) before it can be routed to the purchasing department.