Lean Manufacturing Through a Six Sigma Lens

Most organizations are focused upon catering toand analysis of data.
their customers' needs. And in most cases, theIn a Six Sigma project, every element must be
processes that are involved in meeting thosequantified and measured in order to establish
needs include inefficiencies. They can manifestperformance benchmarks. Once a process has
through defects in production lines, wastedbeen analyzed and the contribution of each
materials and time, and ultimately, higher costselement has been considered, the project team
and inferior deliverables. An ongoing objective forformulates a list of potential solutions. After a
any business is to identify and eliminate thosesolution has been implemented, its results are
inefficiencies.measured against the existing benchmarks to
There are several disciplines that are used tonote improvements. The entire initiative is driven
analyze production flows and business processesby data and rigorous statistical analysis.
with the goal of achieving improved efficiency.Blending The Disciplines
Both Lean Manufacturing and Six Sigma areSix Sigma and Lean Manufacturing can be
proven methods that have been deployeddeployed simultaneously within an organization to
successfully for years. In this article, we'll explorebring about faster results with greater efficiency.
the goals of both disciplines. I'll describe theWhile the former focuses on removing defects,
manner in which Lean Manufacturing and Sixthe latter focuses on removing waste. By blending
Sigma projects are deployed. I'll also explain howthe two concepts, a project team can accomplish
both can be blended to bring about even greaterboth. They can establish performance
levels of efficiency in an organization.benchmarks against which to measure
The Goal Of Lean Manufacturingprocess-related changes; they can also use Value
Lean Manufacturing was created by Toyota. TheStream Mapping to identify capacity shortfalls,
concept is focused upon the end product that isexcessive cycle times, and productivity issues.
delivered to the customer and the factors thatIn essence, Lean Manufacturing is a "top down"
contribute to that product's value. In essence, anyapproach that provides a broader perspective of
factor that does not contribute value isan organization's production and design flow. By
considered wasteful and therefore, should becontrast, Six Sigma is a data-driven method of
eliminated from the process. The original conceptanalysis that provides a closer look at individual
focused on seven key areas of waste: defects,processes. Both perspectives are important to
overproduction, conveyance, waiting, inventory,achieving company-wide improvements in
motion, and overprocessing. By identifying andefficiency. When deployed together, a business
eliminating any inputs within those seven areascan add greater value to the product that is
that fail to contribute value, an organization canultimately delivered to the end customer. Defects
deliver products to the end customer morecan be minimized, production costs can be
quickly with reduced costs of production.reduced, and customer loyalty can be improved.
The Goal Of Six SigmaAs every sector becomes increasingly
Six Sigma takes an alternate approach in thecompetitive, it's more important than ever for
pursuit of a similar goal. The objective is toorganizations to streamline their processes while
identify and eliminate inefficiencies in anreducing their costs and eliminating defects. A
organization's processes. But, rather than focusingtwo-pronged deployment strategy that
on elements of the production flow that fail toseamlessly blends the principles of Six Sigma and
contribute value to the end product, the initiativeLean Manufacturing can transform a business and
seeks to find and remove process-relatedyield startling results.
defects. This is accomplished through the collection