Business Process Model and Notation $($BPMN$)$

Business Process Model and Notation $($BPMN$)$ provides a graphical representation of business workflows that is used in the modelling of business processes; aiding in business process analysis and business process improvements. The case below relates to the credit control function of a medium$-$sized business.

Alpha Company wants to improve its credit control function to improve cash flows and customer relationship management. The company CEO wants a business flow diagram that graphically displays the decisions and business process of the company's credit control function as follows:

I. A customer, Beta Company, requests deferred payment on purchase as it has a pre$-$existing credit facility. Its credit limit is AED $500,000.$

II$.$ Currently the customer has used up $90\%$ of its assigned credit limit$.$

III. The customer presents a purchase request letter via email to Alpha company requesting supplies of relevant goods to the value of AED $70,000$

$6$

IV$.$ The system should have checks and balances to engage with customers with credit facilities while ensuring no customer exceeds his credit limit

Required

a$.$ Draw a general graphic representation of the credit control function using the BPMN ensuring to use a START and an END nodes at appropriate points

b$.$ In the case of Beta Company, write an appropriate email to the CEO addressing any credit request issues highlighted by the BPMN flow