Although much research has been done in the area of strategic planning for
information systems (IS), relatively less research has focused on the outpu
t of the IS planning process, namely, the IS plan. This paper examines the
usefulness of IS plans through a field survey of 136 IS executives. Results
indicate that IS plans are generally perceived to be useful for supporting
business objectives, improving systems integration, exploiting information
technology (IT) for competitive advantage, and prioritising IS development
projects. Conversely, IS plans are perceived to be less useful for clarify
ing the role of IS, evaluating IS performance, anticipating surprises and c
risis, and adapting to unanticipated situations. Implications of these resu
lts are discussed.