Book Image

CISA – Certified Information Systems Auditor Study Guide

By : Hemang Doshi
Book Image

CISA – Certified Information Systems Auditor Study Guide

By: Hemang Doshi

Overview of this book

Are you looking to prepare for the CISA exam and understand the roles and responsibilities of an information systems (IS) auditor? The CISA - Certified Information Systems Auditor Study Guide is here to help you get started with CISA exam prep. This book covers all the five CISA domains in detail to help you pass the exam. You’ll start by getting up and running with the practical aspects of an information systems audit. The book then shows you how to govern and manage IT, before getting you up to speed with acquiring information systems. As you progress, you’ll gain knowledge of information systems operations and understand how to maintain business resilience, which will help you tackle various real-world business problems. Finally, you’ll be able to assist your organization in effectively protecting and controlling information systems with IT audit standards. By the end of this CISA book, you'll not only have covered the essential concepts and techniques you need to know to pass the CISA certification exam but also have the ability to apply them in the real world.
Table of Contents (19 chapters)
1
Section 1: Information System Auditing Process
4
Section 2: Governance and Management of IT
7
Section 3: Information Systems Acquisition, Development, and Implementation
10
Section 4: Information System Operations and Business Resilience
13
Section 5: Protection of Information Assets

Summary

In this chapter, we discussed various testing methodologies, different approaches to system migration and cutover techniques, and the objectives of post-implementation reviews. We also discussed how to conduct post-implementation reviews of systems to determine whether project deliverables, controls, and requirements have been met.

A system migration is the process of transferring IT resources (mostly data) to a new hardware or a software platform with the objective of gaining better business value.

Changeover is the process of shifting to a new system and stopping using old systems. It is also known as the go live technique or the cutover technique. Parallel changeover, phased changeover, and abrupt changeover are some of ways to change to a new system.

A post-implementation review is conducted to determine the extent to which the project met its objectives and addressed the originally defined requirements, perform a cost-benefit analysis, determine the return on investment,...