Abstract
This study tested the effect of environmental uncertainty on Strategic Information Systems Planning (SISP), and of SISP on SISP success. A questionnaire operationalised SISP as technical and personnel planning; environmental uncertainty as changeability and unpredictability; and success as alignment, analysis, and cooperation. A postal survey collected data from 161 IS executives. A quickly changing environment predicted technical and personnel resources planning. An unpredictable environment predicted personnel resources planning. Both technical and personnel resources planning predicted SISP success. The research highlighted the impact of environmental dynamism on SISP, and of both technical and personnel resources planning on SISP success.
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