The document defines business processes as cross-functional activities that convert inputs to outputs. Business process reengineering (BPR) is fundamentally rethinking and redesigning business processes to dramatically improve performance in areas like cost, quality, service, and speed. BPR aims to be customer-focused, fast, flexible, innovative, and productivity-enhancing. It requires radical, integrated changes centered around end-customers and processes. The key steps of BPR involve selecting processes, understanding the current process, developing a vision for improvement, creating an action plan, and executing the plan.