One of the basic premises of business process reengineering is that information should be captured only once, and it should appear simultaneously every place it is needed. If someone is taking information from one system and inputting it into another, that is a process that is broken and needs to be reengineered. Therefore, business process reengineering is likely to result in an increased use of centralilzed data bases. Business process reengineering involves analyzing and radically redesigning the work flow. Radical redesign means throwing out the old procedures and inventing new ways of getting the work done. As a business process is disassembled in order to be restructured, the internal controls that have been developed for the process will need to be revised or completely rewritten in order to effectively control the restructured process. If that step is overlooked, management will have no internal controls over the new process, leaving the company vulnerable to failure to achieve its objectives. The focus of business process reengineering is on long-term results. A legacy system is defined as a computer system that has been in operation for a long time, and whose functions are too essential to be disrupted by upgrading or integration with another system. Business process reengineering involves analyzing and radically redesigning the work flow. Radical redesign means throwing out the old procedures and inventing new ways of getting the work done. A reengineered process would not use a legacy system but instead would require a new system.
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