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The concept of Business Process Redesign or reengineering (BPR) has been around for about twenty years, and as technologies used in business and associated business practices have changed over the years, BPR has evolved as well. Reflecting these changes, various definitions and alternative names have been proposed for BPR. In this paper, the authors investigate the literature on BPR in order ascertain current uses, practices, and relevance of BPR in today's business environment. Based on this review they classify BPR projects into three types according to business needs: internal, external, and traditional.