This book offers a comprehensive, up-to-date presentation of the tasks and challenges facing internal audit. It presents the Audit Roadmap, the process model of internal auditing developed at SAP which describes all stages of an audit. Coverage provides information on issues such as the identification of audit fields, the annual audit planning, the organization and execution of audits as well as reporting and follow-up. The handbook also discusses management-related subjects. Separate chapters are dedicated to special topics like IT or SOX audits.