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This paper proposes a general, yet useful theory of information systems. It is a response to repeated lamentations and debates about whether it is possible to find a set of core concepts for the IS field. Business and IT professionals can apply this theory for understanding and analyzing information systems. Academic researchers can apply it for gaining a(More)
The lack of an agreed upon definition of information system (IS) is one of many obstacles troubling the academic IS discipline. After listing a number of definitions of IS, this paper defines IS as a special case of work system as defined in Alter (1999a). This definition has many desirable characteristics: it is easy to understand; differentiates IS from(More)
Service systems produce all services of significance and scope, yet the concept of a service system is not well articulated in the service literature. This paper presents three interrelated frameworks as a first attempt to define the fundamentals of service systems. These frameworks identify basic building blocks and organize important attributes and change(More)
This article is the first of two whose goal is to advance the discussion of IS risk by addressing limitations of the current IS risk literature. These limitations include: • inconsistent or unclear definitions of risk, • limited applicability of risk models, • frequent omission of the temporal nature of risk, and • lack of an easily communicated organizing(More)
Although called systems, information systems in organizations are often viewed as tools that " users " use. IS success is often gauged as though it were about acceptance and usage of a tool. System development is often conceived as building computerized tools that satisfy information requirements of idealized business processes. Frequent IS disappointments(More)
The initially revolutionary DSS agenda is now ancient history. This paper argues that ''decision support'' provides a richer basis than ''DSS'' in both practice and research. Using a loan-processing example involving two banks, it shows how work system concepts might be applied to understand decision support in real world settings, and how decision support(More)