Check Sheets, Histograms, and Pareto Charts
When solving several quality problems, a project manager has to choose which ones to deal with first. One way of prioritizing quality problems is to identify which problems occur most often. These data can be collected through a check sheet, which is a basic form for the user to check every time a problem occurs in the appropriate box or by automating the data collection process using the appropriate technology. Once the data is collected, it can be analyzed by creating a histogram type of frequency distribution chart.
A true histogram is a column chart in which the column width fills the available space on the horizontal axis and is proportional to the category values shown on thex axis, while the column height is proportional to the occurrence frequency. Most histograms use one width of column to represent a category, while the vertical axis represents the frequency of occurrence. A variation on the histogram is a frequency distribution chart invented by economist Vilfredo Pareto known as a Pareto chart, in which the columns are arranged in decreasing order with the most common on the left and a line added that shows the cumulative total. The combination of columns and a line allows the user to tell at a glance which problems are most frequent and what fraction of the total they represent.
a. Project management risk
b. Security risk
c. Internet risk
3.Six Sigma is a quality program that, when all is said and done, improves your customer’s experience, lowers your costs, and builds better leaders.
Six Sigma in many organizations simply means a quality measure which strives for almost perfection. It can be called " Six Sigma " or it can have a generic or customized name, such as " Operational Excellence, " " Zero Defects " or " Customer Perfection. "Six Sigma is a disciplined, data - driven approach and methodology for the elimination of defects (driving towards six standard deviations between the mean and the closest specification limit) in any process –from production to transaction and from product to service.
The Six Sigma DMAIC process (defining, measuring, analyzing, improving, controlling) is an improvement system for existing processes that fall below requirements and seek incremental improvement.
The Six Sigma DMADV process (defining, measuring, analyzing, designing, verifying) is an improvement system used to develop new Six Sigma quality processes or products. It can also be used if an existing process requires more than just an increase.