Business systems planning and business Information control study: a comparison
IBM Systems Journal
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Most businesses go through three distinct phases as they implement computer technology. In the first phase, they automate specific, reasonably well defined processes such as payables, receivables, invoicing and sales. In phase two, old applications are integrated and new applications are added either as integrated processes or as stand alone applications. In the third phase, a company database is established and users are given access to the information stored there.