Successful uses of information technologies usually require teams of developers working in concert (rather thanrnindividuals working alone); implying that methodological prescriptions for such developers should centre onrnissues such as communication and co-ordination. Here, it will be argued that the epistemology proffered byrnthe SSM advocates does not provide a practical basis upon which to conduct team-based systems development;rnbecause the SSM advocates over-emphasise the need for subjective certainty and meaning, thus rendering theirrnepistemology over-idealistic. It is concluded that the need for effective communication between team membersrnnecessarily implies abandoning the search for subjective certitude and supplanting it with the search forrnpractical “working knowledge” of the actual situation in which IS development occurs.
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