editor’s note

Without a clear idea of the boundaries of an information system, you cannot realistically calculate the information system costs. Where are the boundaries of information systems? Information system managers typically draw the line around the hardware itself. Ironically, what we would call an interface—a point where the technology meets people at the heart of an information system—is more commonly referred to by system engineers as a ‘terminal’. But whether you take a narrow or broad view of an information system, it involves substantial costs which go beyond the price tag attached to the hardware.

Estimating information system costs

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