What´s a Control Chart?

In your opinion, which of the tools explored in this unit is the most efficient at improving quality? Explain why.

Indeed, the seven quality tools are without a doubt a very efficient tool to achieving quality but I find the control chart otherwise known as the statistical process control more efficient due to the above remarkable features it poses.

First of all, a control chart is used to distinguish between process variation resulting from a resulting from a common cause and variation resulting from special causes. When looking for quality one doesn’t look at just one thing but a number of things come into play to contribute towards achieving quality.

When using the control chart, unlike the other methods, control chart monitors process variation over time, this is a very important feature as we all know variation is something that will occur over time and there needs to be a system that monitors the occurrence of variation since when it has occurred it needs to be immediately eradicated.

The control charts differentiate between common causes and special cause. Before variation can be completely dealt with and eradicated, it is necessary that special causes and common causes are differentiated and eradicated strategically. The other tools cannot particularly differentiate between special causes and common causes appropriately for the system to have the full capacity to eradicate variation knowing the exact kind of variation we are dealing with.

Also, when a control chart is used, it leads to a more consistent product or service leading to a happier customer. Since control charts is about controlling and monitoring the processes in an organization to provide better quality, it is constant and makes it possible to eradic...

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...ituation is stable and not out of control. If that is the case, then buses can be located at various bus stops so that workers can make it to the bus stop at a particular time, in this case say,7:30, the bus using roughly about 30-40 minutes can then get to the work site on time for workers to start work on time.

Since it is a control chart is able to tell us when to leave a process alone or when to start hunting for special causes of variation, we won’t have to live in fear worrying about special or out of control conditions, such as breakdown of the bus or road construction.

On the other hand, using a cause and effect diagram otherwise known as ishikwawa diagram, the cause of the delay of employees will be identified if possible among other causes.

Works Cited

Knowles, G; Quality Management, Chapters 2 & 3 (2011); London; UK: Ventus Publishing ApS; Bookboon