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Trends in the evolution of business IS/IT

Aspects. ‘ Era ’. DP. MIS. SIS. Nature of the technology. ‘ Computers ’ fragmented (hardware limitation. ‘ Distributed process ’ interconnected software limitation. ‘ Networks ’ integrated people/vision limitation ). Nature of operations. Remote from users controlled by DP.

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Trends in the evolution of business IS/IT

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  1. Aspects ‘Era’ DP MIS SIS Nature of the technology ‘Computers’ fragmented (hardware limitation ‘Distributed process’ interconnected software limitation ‘Networks’ integrated people/vision limitation) Nature of operations Remote from users controlled by DP Regulated by management services Available and supportive to users Issues in systems development Technical issues (programming/ project management) Support business user’s needs (information management) Relate to business strategy ? Reason for using the technology Reducing costs (especially administrative) – technology driven Supporting the business (manager) – user driven Enabling the business – business driven Characteristics of systems Regimented/ operational (internal) Accommodating/ control Flexible/ strategic ? (external) Trends in the evolution of business IS/IT

  2. The business / systems portfolio matrix

  3. Mapping the evolution of ISP on the application portfolio model Stage 5 Stage 4 Stage 3 Stage 2 Stage 1 資料來源:M. J. Earl (1989)

  4. Five-stage ISP model Increasing organisational maturity with respect to IS/IT planning 1 2 3 4 5 IS/IT application mapping Defining business needs Detailed IS planning Strategic/ competitive advantage Linkage to business strategy MAIN TASK Management under- standing Agreeing priorities Balancing the portfolio Pursuing opportunities Integrating IS and business strategies KEY OBJECTIVE DP/IS led Senior management initiative Users and IS together Executives/ senior management and Users Coalition of users/ management and IS DIRECTION FROM Bottom-up development Top down analysis Balanced top down and bottom-up Entre- preneurial (user innovation) Multiple method at same time MAIN APPROACH 資料來源:M. J. Earl (1989)

  5. Critical issues in managing segments of the portfolio Very high risk High risk STRATEGIC HIGH POTENTIAL Known risk FACTORY SUPPORT Low risk

  6. The application portfolio – Management style

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