Multiple methodology
Finally, Earl (1989) wisely opts for a multiple methodology approach to IS strategy
Formulation. This again helps us in the aim of relating IT investment more closely with
The strategic aims and direction of the organization and its key needs. One element here
Is a top-down approach. Thus a critical success factors analysis might be used to establish
key business objectives, decompose these into critical success factors. Then establish the
IS needs that will drive these CSFs. A bottom-up evaluation would start with an evaluation
Of current systems. This may reveal gaps in the coverage by systems , for example in the
Marketing function or in terms of degree of integration of systems across functions.
Evaluation may also find gaps in the technical quality of systems and in their business
Value. This permits decisions on renewing , removing , maintaining or enhancing current
Systems. The final leg of Ear’s multiple methodology is ‘inside-out innovation’. The
Purpose here is to ‘identify opportunities afforded by IT which may yield competitive
Advantage or create new strategic options’. The purpose of the whole threefold
Methodology is, through an internal and external analysis of needs and opportunities,
to relate the development of IS applications to business / organizational need and
strategy.