It has been stated that internal auditors have developed computer audit approaches that should be considered by the external auditor in planning the conduct of an audit of a client who has a highly sophisticated information system.

Required:

a. Without specific regard to computer auditing, what are the major guidelines the external auditor should consider in using audit work completed by the internal auditor?

b. What is systems development auditing? How might the performance of systems development auditing by internal auditors enhance the auditability of computer applications? Explain.

c. In what ways might an internal auditor have a competitive advantage in developing and implementing concurrent audit techniques? Explain.

d. Identify three major concurrent audit techniques used by internal auditors, and explain why they might be used.