Required: a) Evaluate the credit-checking procedures for input validity, input completeness, input accuracy, update completeness, and update accuracy. b) Evaluate any weaknesses in these procedures and a suggest improvements to overcome the proposed weakness.

Question 8 (10 marks) Suggested time allocation: 36 minutes The computerised credit-checking procedure of ABC Limited operates as follows: . Orders are entered into the computer by a Customer Service Representative. . The computer calculates the total of the customer order and adds that amount to outstanding balance received from the accounts receivable master data and the customer outstanding orders on the sales order master data (i.e, orders not yet billed). . This total (customer order, open accounts receivable, open sales orders) is then compared to the credit limit stored on the customer master record. . If the customer order causes the credit limit to exceed, the computer displays a warning on the Customer Sales Representative screen. The Customer Sales Representative may choose to cancel the order or to override the credit limit warning. . If the Customer Sales Representative overrides the warning, the computer accepts and records the order. In this instance, Customer Sales Representative cannot change computer program. Required