One thing that should be clear by now is that what is ‘acceptable’ is a very hard concept to pin down. In the case of an IS it depends on how the system was built or acquired, who the stakeholders are and what their needs are. There is no ‘one size fits all’ answer to the question. What we need to understand and be able to apply is a process for determining whether a particular system is acceptable in a particular scenario, and that is what this chapter will focus on.

This chapter is about the final decision to accept or not accept a system. In practice, of course, the decision is not simple and nor does it have only two possible outcomes. There is a range of possible scenarios that we will explore, each relating ...

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