Journal of Theoretical and Applied Information Technology 10 th May 2016. Vol.87. No.1 © 2005 - 2016 JATIT & LLS. All rights reserved . ISSN: 1992-8645 www.jatit.org E-ISSN: 1817-3195 38 AUDIT INFORMATION SYSTEMS CORE BANKING SYSTEM USING ITIL V.3 CASE STUDY ON BTPN SHARIA BANK 1 MOCHAMAD WAHYUDI, 2 ARIEF DESWANDI Sekolah Tinggi Manajemen Informatika dan Komputer Nusa Mandiri (STMIK Nusa Mandiri) E-mail: 1 wahyudi@nusamandiri.ac.id, 2 arief.deswandi@gmail.com ABSTRACT This research on the application of information systems audit, namely Corebanking System, is to measure how to handle problems that occur and how long the problems that can be solved in accordance with the ITIL V3 framework at the sub-domain of Service Desk, Incident Management and Problem Management included in the domain of Service Operation. The role of Information Technology Service Management (ITSM) in improving a company's, in this case is BanK BTPN Syaria’s, ability to provide the best services that suit the needs of the customer (customer satisfaction) and in line with the interests of the company is becoming increasingly important. IT Infrastructure Library (ITIL) provides an integrated device of best practices to serve the management of Information Technology. ITIL is a set of concepts and techniques for managing the infrastructure, development, and operation of information technology (IT). ITIL V3 using IT approach "Service Life Cycle" is how to improve what they have to ensure adjustment to the new standards that provide adjustments to the process of upgrading hardware and software. The results of the audit assessment (self-assessment) contained the findings for each sub domain procedures are still not in accordance with the standards of best practice ITIL V.3. From the sub domain of Management Service Desk, the level of Intent, Process Capability and Customer Interface need some upgrading/improvement. In the Problem Management sub domain, the level needs to have upgrading/improvement are the External Integration and Customer Interface level. While the upgrading/improvement at the Incident Management sub domain is at the level of External Integration and Customer Interface. For the reason, the company must fix the process steps whing are still failing, especially those oriented towards customers. Keywords: Audit of Information Systems, IT Infrastructure Library (ITIL), Core Banking System, Service Life Cycle 1. INTRODUCTION The role of Information Technology (IT) is becoming increasingly important because we have entered the era of information (information age). Information technology is used for processing, obtaining, compiling, storing and manipulating data in various ways to produce quality information, which is relevant, accurate and timely used for personal, business, and government needs. In addition, it is a strategic information used for decision making. In this case, the technology uses a computer system to process data and the network system to connect one computer to another as needed. Telecommunications technology is used so that data can be distributed and accessed globally. The development of information technology has implicated directly to the business world which always moves to achieve a competitive advantage. A very competitive and rapidly changing business industry has made organizations increasingly aware of the potential benefits of the technology, particularly information technology (IT). Many benefits can be taken if the organizations are able to implement information technology in their business processes. Time reduction in service delivery, quality improvement, functional and ease of use as well as continuous improvement done with minimum cost are several advantages which eventually help the organizations achieve their vision and mission. The amount of benefits the organizations get has encouraged the increased expectations on the role of IT. IT is expected to no longer be a driving tool but to become an integrated part in the implementation of the organizations business strategy.