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    Home IT Management
    • IT Management

    How to Apply 6 Sigma Quality Practices to Your Business

    By
    Linh C. Ho
    -
    January 4, 2008
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      Part I:

      Six Sigma for IT Service Management-What you need to know:

      Delivering and supporting IT services is not enough to make IT a driver of business value. As IT increasingly plays an integral part in the business, it must consider new approaches to improve service quality and process efficiency to become more aligned and integrated with business objectives.

      But how?

      IT best practices like ITIL v3 (Information Technology Infrastructure Library) introduce Continual Service Improvement for service management. And, quality methods like Six Sigma bring a business focus to IT. In combination, they add a quality layer to ITSM (IT Service Management).

      This series of articles will focus on what Six Sigma is, how Six Sigma techniques bring business focus to ITSM and how Six Sigma complements ITIL v3.

      What is Six Sigma?

      Six Sigma is a business-driven quality improvement method that enables organizations to streamline processes by reducing the number of defects that 1) impact customers and 2) increase costs. The sigma measure, σ, represents the standard deviation, indicating the amount of variation or inconsistency in a process. The target for quality equates to six standard deviations from the mean-six sigma-by which the variation from a process is reduced to no more than 3.4 defects per million opportunities (DPMO).

      According to Quality America, a bank operating at three sigma for instance would correspond to 270 million erroneous credit card transactions recorded per year in the United States and 54,000 checks lost each night. It is numbers like this that get the attention of C-level business executives to turn to quality solutions for business transformation.

      Six Sigma has roots in manufacturing, but it is now adopted in many industries such as finance and banking, healthcare and government-as well as IT management-with considerable success. Companies such as General Electric, Getronics, Sun Microsystems, American Express, Bank of America and Lockheed Martin have achieved and published significant returns from Six Sigma. Moreover, Service management technology vendors such as Compuware and others have incorporated automated Six Sigma techniques in their solutions.

      What is DMAIC?

      At the core of Six Sigma is its quality improvement model, called DMAIC, for Define, Measure, Analyze, Improve and Control. Each of the DMAIC phases has clear objectives, tasks and proven techniques (see table, below). This continual loop provides a quality improvement cycle for products and services, starting with key measurable objectives definition through to implementing recommended solutions and sustaining improvement until further enhancement is required.

      Six Sigma is proven to provide quantified returns, in terms of cost reduction and increased profit. ITSM organizations can benefit from Six Sigma by reducing IT problems (defects), impacting critical business processes (reducing costs to fix problems but also reducing costs to the business from these problems), improving service management processes, and, as a result, improving the IT service quality delivered to the business.

      In short, Six Sigma helps baseline service quality level, quantify improvement for return on investments and sustain improvement until further enhancement is required. Six Sigma is a business-driven quality method with strong emphasis on customer requirements that helps IT service providers (internal or external) become more business-aligned.

      Now that we have covered the basics of Six Sigma and its core improvement model (DMAIC), the next article will discuss how Six Sigma brings a business focus to ITSM and which techniques are applicable for IT service management.

      Linh C. Ho is Director of Product Marketing at OpTier Inc. Prior to OpTier, Linh was senior product marketing manager at Compuware, as well as at Proxima Technology. Linh has over 10 years in the IT service management market. Linh is a co-author of two itSMF books: “Global Best Practices for IT Management” and “Six Sigma for IT Management.” Linh also served on the review team for several itSMF books, including ITIL V3 Foundations. She has written articles and spoken at conferences on the topics of Six Sigma, ITIL and IT service management. Linh is certified ITIL v3 and a Six Sigma Champion. She holds an Honors Baccalaureate in Commerce; International Business Management and Management Information Systems from the University of Ottawa. She can be reached at [email protected].

      Further reading:

      Linh C. Ho has published a Six Sigma Q&A (click here: http://www.compuware.com/dl/EM17276_ITSM_NewsletterV2.pdf) itSMF has published a book called “Six Sigma for IT Management” relating to this topic.

      Leading service provider Wipro has a white paper relating to using Six Sigma for service quality improvement. Click here.

      Linh C. Ho
      Linh C. Ho is Director of Product Marketing at OpTier, Inc. Prior to OpTier, Linh was senior product marketing manager at Compuware, as well as at Proxima Technology. Linh has over 10 years in the IT service management market. Linh is a co-author of two itSMF books: “Global Best Practices for IT Management” and “Six Sigma for IT Management.” Linh also served on the review team for several itSMF books, including ITIL V3 Foundations. She has written articles and spoken at conferences on the topics of Six Sigma, ITIL and IT service management. Linh is certified ITIL v3 and a Six Sigma Champion. She holds an Honors Baccalaureate in Commerce, International Business Management and Management Information Systems from the University of Ottawa. She can be reached at [email protected]

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