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What is Lean Six Sigma?

Lean Six Sigma is the combination of 2 independent philosophies, so before we can begin to look at this combined philosophy, it would make sense to dissect each of the independent philosophies first.

Six Sigma

Essentially Six Sigma is a set of tools and techniques that uses data at its heart to measure how many defects there exists in a process and then systematically eliminates the said defects until the defect levels are minuscule and maximising value. There isn’t a business process or business aspect that Six Sigma cannot improve.

Sigma in statistical terms is a Greek letter that denotes deviation from the mean. the number 6, refers to the sigma level. The table below showcases the different sigma levels and the corresponding defects per million opportunities. The 6th level is the one where a process is considered to have the optimum number of defects per million opportunities.

So, when we say that we are aiming for a process or system to reach a Six Sigma level, we mean that it should not have more than 3.4 errors per million opportunities in which errors could occur.


The core tenet of the lean philosophy revolves around maximising value for the customer whilst reducing resources, time, energy, and effort. A company that has a lean mindset is able to enhance their levels of market competitiveness and innovation.

So why Lean Six Sigma?

The use of more problem-solving tools and techniques will help to solve larger numbers and varieties of business problems. Exponents of the Lean and Six Sigma philosophy began to see a symbiosis between the 2 philosophies. There was a concerted effort to combine the quality improving aspects of Six Sigma and the removing waste aspect of lean. The resultant philosophy, which amplifies the strengths of each individual philosophy whilst at the same time reducing their individual weaknesses, came to be known as Lean Six Sigma (LSS).

We conduct our trainings on various 'belts' within the LSS system. See below to find out more.

Six Sigma Yellow Belt

The Six Sigma yellow belt practitioner is a professional that is well versed in the fundamentals of Six Sigma. The fundamentals will include a deep understanding of the tools used in the Six Sigma field. The yellow belt certification is ideal for those people that are new to the Six Sigma universe. 

Not only will Six Sigma yellow belt allow the practitioner to participate and assist green belts and black belts with Six Sigma projects, but a certified yellow belt practitioner will also be able to affect small improvements in their own and immediate working section. The holder of the yellow belt certification can be considered to be a subject matter expert (SME) in Six Sigma.

Six Sigma Green Belt

The Six Sigma green belt certification allows the practitioner to act as a trained member within his/her own functional section in the respective organisation.  

The team member will work on small yet important, carefully selected Six Sigma projects. The Six Sigma green belt project will generally require less stringent statistical commitment to a project than that of a Six Sigma black belt. 

Generally, Six Sigma Green Belts can conduct a lot of section specific data collation and analysis in support of the wider company Six Sigma projects.  

Six Sigma Black Belt

Lean Six Sigma Black Belts are highly trained professionals in Quality improvement methodology, who are able to apply Six Sigma principles to business processes and lead a quality improvement initiative. They are well versed in the Six Sigma Methodology and can skilfully lead and assume full responsibility for large scale quality improvement projects.

They are competent in the use of Six Sigma tools and techniques and standard principles. Black belts typically demonstrate their skills through significant financial improvement and customer benefits on multiple projects. Black belts may be utilised as team leaders responsible for measuring, analysing, improving, and controlling key processes that influence customer satisfaction and/or productivity growth.

Course Content

The Course Content shall differ depending on the training path the individual chooses to pursue. Reach us for further details!

Course Methodology

This course is an instructor led classroom-based environment, always guaranteed to be taught by a certified Six Sigma Yellow, Green, or Black Belt. The classes will be conducted over 5 consecutive days. The course consists of a blend of lectures, application, individualistic and team based exercises. All other materials will be provided to the attendees in the classroom environment. At the conclusion of the course, there will be an exam and a certification can be obtained upon attaining the passing grade.

On-Site Training 

We are able to conduct on-site group training for your organisation. On-site training has numerous benefits, which include (but are not limited to):

Training cost savings - training on site is typically less than the costs associated with training off-site. This savings are also attributed towards the costs of travel that would otherwise be incurred through off-site training.

Customised training - when holding a training session on-site, we are able to customise our course to suit the needs of your company.

Convenient - you would be able fit the trainings around your working environment and your working schedule.


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