The study of information systems is a multidisciplinary field. No single theory or perspective dominates. Figure 1.9 illustrates the major disciplines that con- tribute problems, issues, and solutions in the study of information systems. In general, the field can be divided into technical and behavioral approaches. Information systems are sociotechnical systems. Though they are composed of machines, devices, and “hard” physical technology, they require substan- tial social, organizational, and intellectual investments to make them work properly.
TECHNICAL APPROACH The technical approach to information systems emphasizes mathematically based models to study information systems, as well as the physical technology and formal capabilities of these systems. The disciplines that contribute to the technical approach are computer science, management science, and operations research. Computer science is concerned with establishing theories of computabil- ity, methods of computation, and methods of efficient data storage and access. Management science emphasizes the development of models for decision-mak- ing and management practices. Operations research focuses on mathematical techniques for optimizing selected parameters of organizations, such as trans- portation, inventory control, and transaction costs.
BEHAVIORAL APPROACH An important part of the information systems field is concerned with behavioral issues that arise in the development and long-term maintenance of information systems. Issues such as strategic business integration, design, implementation, utilization, and management cannot be explored usefully with the models used
in the technical approach. Other behavioral disciplines contribute important concepts and methods. For instance, sociologists study information systems with an eye toward how groups and organizations shape the development of systems and also how s ystems affect individuals, groups, and organizations. Psychologists study information systems with an interest in how human decision makers perceive and use formal information. Economists study information systems with an interest in understanding the production of digital goods, the dynamics of digital markets, and how new information systems change the control and cost structures within the firm. The behavioral approach does not ignore technology. Indeed, information systems technology is often the stimulus for a behavioral problem or issue. But the focus of this approach is generally not on technical solutions. Instead, it concentrates on changes in attitudes, management and organizational policy, and behaviordeveloping system solutions to real-world problems and managing informa- tion technology resources. It is also concerned with behavioral issues sur- rounding the development, use, and impact of information systems, which are typically discussed in the fields of sociology, economics, and psychology. Our experience as academics and practitioners leads us to believe that no single approach effectively captures the reality of information systems. The successes and failures of information are rarely all technical or all behavioral. Our best advice to students is to understand the perspectives of many disci- plines. Indeed, the challenge and excitement of the information systems field is that it requires an appreciation and tolerance of many different approaches. The view we adopt in this book is best characterized as the sociotech- nical view of systems. In this view, optimal organizational performance is achieved by jointly optimizing both the social and technical systems used in production. Adopting a sociotechnical systems perspective helps to avoid a purely tech- nological approach to information systems. For instance, the fact that infor- mation technology is rapidly declining in cost and growing in power does not necessarily or easily translate into productivity enhancement or bottom-line profits. The fact that a firm has recently installed an enterprise-wide finan- cial reporting system does not necessarily mean that it will be used, or used effectively. Likewise, the fact that a firm has recently introduced new business procedures and processes does not necessarily mean employees will be more productive in the absence of investments in new information systems to enable those processes
