Many companies spend considerable amounts of money on customer surveys every year. Customer survey results are being used to amend strategies, design new products and services, focus improvement activities and…
Many companies spend considerable amounts of money on customer surveys every year. Customer survey results are being used to amend strategies, design new products and services, focus improvement activities and…
The Moment of Truth is the short timeframe when a customer experiences the product or service that many people have often prepared over months. It is the moment when a small, often unintentional mishap has the huge potential to spoil the result of hard work by others in the organisation behind the scenes. …
Just some weeks ago, I filed my tax in Singapore. It took me about twelve minutes at my computer at home on a Sunday afternoon in April. It was not straight forward, I needed to make some amendments and additional inputs to what IRAS had already prepared for me. Yet, it was really easy to understand, very effortless to do and I have the strong feeling I did not make a mistake. Twelve minutes. Really.…
Every blood donor of a large blood bank has to go through five process steps. These steps are Registration, Screening, HB Test, Donation and Refreshment. At the end of the process, that often takes around an hour, feedback forms are available for the donors. In one week, 210 donors have returned these forms with their satisfaction score for each process step.…
Three teams compete in our CHL business simulation. After completing Day One, it looks like the teams show a very different performance. Although the means look very similar, the variation is strikingly different. To test this assumption of different variation among the teams, the Test for Equal Variances is deployed.…
Survey data should be analysed with different tools at the same time in order to find the most appropriate method to show “patterns in data” that lead to conclusions. The Kano analysis or the Jaccard index offer additional insights into survey data.
Remember: Attaining the data is expensive, analysing them is cheap.…
To be a good coach is hard work. Coaching requires a set of skills that need to be built. The journey as a coach is a long but rewarding one. How will we know when we have arrived? “With the best of leaders, when the work is done, the project is completed, the people all say, ‘We did it ourselves.’” Lao Tzu…
Consider a production process that produced 10,000 widgets in January and experienced a total of 112 rejected widgets after a quality control inspection (i.e., failure rate = 1.12%). A Six Sigma project was deployed to fix this problem and by March the improvement plan was in place. In April, the process produced 8,000 widgets and experienced a total of 63 rejects (failure rate = 0.79%). Did the process indeed improve?
Your staff members complain about having too much work, the proportion of people on short-term sick-leave is consistently above average and the turnover rate is disturbingly high. However, comparing takt time and processing time does not show to any obvious issue. So, what is the problem?…
If you wish to engage in a fruitful workshop that leads to innovative ideas, you may wish to clarify some basic ground rules for creativity sessions. These ground rules have been adopted from the Creative Problem Solving toolbox by the International Center for Studies in Creativity (Buffalo State University of New York). And, they have been proven essential through many creativity sessions:…
Working capital is influenced by a complex system consisting of external and internal factors as well as strategic decisions. External drivers are composed of economy, cost of capital, regulations and market position. Strategic decisions include geographies of customers and suppliers, customer mix and vertical integration. Tactical factors are policies, processes and metrics, systems and tools and also the degree of execution of the former.
Given today’s need for HR professionals to be strategic business partners, to be a ‘Voice of Conscience’ to the CEO as well as champion for the employees. Those with background in proven management methodologies and tools have a great advantage. HR Professionals who can present their business case for HR strategies and interventions with a compelling return on investment, supported by rock-solid data, will be well respected and regarded.
Linear regression is one of the most commonly used hypothesis tests in Lean Six Sigma work. Linear regression offers the statistics for testing whether two or more sets of continuous data correlate with each other, i.e. whether one drives another one.…
Three methods for dissolving a powder in water show a different time (in minutes) it takes until the powder dissolves fully. The results are summarised in Figure 1.
There is an assumption that the population means of the three methods Method 1, Method 2 and Method 3 are not all equal (i.e., at least one method is different from the others). How can we test this?…
In some situations, Six Sigma practitioners find a Y that is discrete and Xs that are continuous. How can a regression equation be developed in these cases? Black Belt training indicated that the correct technique is something called logistic regression or binary regression. But this tool is often not well understood.…
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