However, it is possible to integrate Lean and Six Sigma and reap the full benefits that these methodologies can bring to the table. Defined as a measure of quality that strives for near perfection, six sigma is a disciplined, data-driven approach and methodology for eliminating defects (driving towards six standard deviations between the mean and the nearest specification limit) in any process from manufacturing to transactional and from product to service.
To achieve six sigma, a process must not produce more than 3.4 defects per million opportunities. Despite its origin in manufacturing, Six Sigma, when implemented in IT, isn’t about widgets; the focus is still on processes. When applied to IT operations, Six Sigma aims to measure and improve both internal processes, such as network speed and reliability, and line-of-business processes in which IT has a role, such as how well an online ordering system is working or how well your customer support system is performing actually.
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