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It is widely recognized that the knowledge of information systems is very much essential in today’s business organizations to survive and prosper. This book, in its second edition, provides students with a conceptual framework to understand information systems. The focus of information systems (irrespective of the level of use of information) is on producing quality information needed to facilitate decision making. The objective of this book is to capture the material on information systems and organize it around a framework that offers a current and relevant knowledge based on information system by providing just the adequate amount of material in a concise format. The book is organized in three parts : (i) Information systems basics, (ii) Managing with information and (iii) Managing information resources. Though the main structure of the second edition remains the same, the chapters have been updated and revised as per the recent development in the fields of information technology. Besides this, a new chapter is added to explain the concepts like e-business, Customer relationship management (CRM), Enterprise resources and planning (ERP) and Supply chain management (SCM), comprehensively. Intended for the students of computer applications (BCA and MCA) and management (BBA and MBA), and the undergraduate students of Computer Science engineering, the book is equally useful for the busy professionals who wish to grasp the essentials of management information systems, without attending a formal instructional course. About the Author S. A. KELKAR PhD (Michigan, USA), is an Adjunct Professor in the Department of Computer Science and Engineering, and the Shailesh J. Mehta School of Management, at the Indian Institute of Technology Bombay, Mumbai. He has over 35 years of experience in the field of information systems, information technology, and software engineering. Earlier, he has taught as a full timer at IITB, Mumbai, NIBM, Mumbai, and NITIE, Mumbai. He also teaches postgraduate courses in the area of operations research, and information resources management at the Tata Institute of Social Sciences, Mumbai. Dr. Kelkar has been a consultant to organizations such as Tata Consultancy Services (TCS), Aptech and Voltas. Besides this text, he has authored six books, all published by PHI Learning, New Delhi. Table of Contents Preface Preface to the First Edition Abbreviations Unit One: INFORMATION SYSTEMS BASICS 1. Managing in 21st Century 2. Information, Systems, and IS 3. Classification of IS 4. E-business, CRM, ERP, and SCM Unit Two: MANAGING WITH INFORMATION 5. Strategic Planning and IS 6. Justification for IT/IS 7. IS for Decision Support 8. Quality and Privacy Issues Unit Three: MANAGING INFORMATION RESOURCES 9. Information Resources Management 10. Strategic Planning for IS function 11. Security, Control and Audit Suggested Reading