Quality Management
1. Explain the purpose of a Pareto Chart. Give an example of when one would be used.
The Pareto chart is a type of bar chart that ranks related measures in a decreasing order of occurrence. The purpose of a Pareto chart is to separate the significant aspects pertaining to a problem from the aspects that do not have as much impact. This helps organizations know where to direct most of their improvement efforts. Pareto charts help eliminate the amount of time it takes for organizations to locate the defects within production processes. There are several times when a Pareto chart would be used, but an example would be a problem or occurrence that needs to be corrected. The Pareto chart would find the most likely cause and tell the organization where to focus its efforts.
2. Describe the origin and use of cause-and-effect diagrams.
Cause and effect diagrams originated in 1968 by Dr. Kaoru a noted Japanese quality expert. These diagrams are often called the Ishikawa or fishbone diagrams, and are used in order to show the causes of a specific event. Cause and effect diagrams are a way of visualizing how a variety of factors associated with a process affect the processes output. They show the relationship of all factors that lead to the given situation. The cause and effect diagrams are the only tool of the seven tools that are not based on statistical data.
3. What is a histogram and how is one used?
The histogram is a vertical bar chart that depicts the distribution of a data set. These types of graphs are used to show the frequency of data in an occurrence. Basically it represents how often something will happen, using information in the form of data values. A histogram can be used for a variety of reasons, one of which is to assist in decision making. The graph gives a better representation of the data that allows easier decision making. Also, histograms help summarize large data sets in graph form. Histograms are used to communicate a
The Pareto chart is a type of bar chart that ranks related measures in a decreasing order of occurrence. The purpose of a Pareto chart is to separate the significant aspects pertaining to a problem from the aspects that do not have as much impact. This helps organizations know where to direct most of their improvement efforts. Pareto charts help eliminate the amount of time it takes for organizations to locate the defects within production processes. There are several times when a Pareto chart would be used, but an example would be a problem or occurrence that needs to be corrected. The Pareto chart would find the most likely cause and tell the organization where to focus its efforts.
2. Describe the origin and use of cause-and-effect diagrams.
Cause and effect diagrams originated in 1968 by Dr. Kaoru a noted Japanese quality expert. These diagrams are often called the Ishikawa or fishbone diagrams, and are used in order to show the causes of a specific event. Cause and effect diagrams are a way of visualizing how a variety of factors associated with a process affect the processes output. They show the relationship of all factors that lead to the given situation. The cause and effect diagrams are the only tool of the seven tools that are not based on statistical data.
3. What is a histogram and how is one used?
The histogram is a vertical bar chart that depicts the distribution of a data set. These types of graphs are used to show the frequency of data in an occurrence. Basically it represents how often something will happen, using information in the form of data values. A histogram can be used for a variety of reasons, one of which is to assist in decision making. The graph gives a better representation of the data that allows easier decision making. Also, histograms help summarize large data sets in graph form. Histograms are used to communicate a