Quality Engineering Tools are instruments and techniques used in the quality engineering process to ensure that products or services meet or exceed customer expectations. These tools help organizations monitor and improve their processes, identify defects, and enhance the overall quality of the product.
Quality Engineering Tools
The seven Quality Engineering Tools are as follows:
- Flow Charts.
- Run Charts.
- Pareto Diagram.
- Ishikawa Diagram.
- Scatter Diagram.
A flowchart is a visual representation that illustrates the sequence of steps in a process or algorithm.
A run chart ( Trend chart ) is a line graph that displays data values in a time sequence. It is also known as a run-sequence plot or time series plot.
A checklist is a useful tool that consists of a list of items to be verified with checkboxes, ensuring that no step or requirement is overlooked. For example, a shopping checklist can be used to tick off the items as they are purchased, making sure that nothing is forgotten during the shopping trip.
A Histogram is a graphical representation of the distribution of a set of data, allowing for analysis of variations and patterns.
A Pareto chart is a bar graph that displays the most significant factors in a data set, helping prioritize issues based on their impact.
Ishikawa Diagram ( Fishbone Diagram or Cause-and-Effect Diagram ) visually represents possible causes for a specific problem, aiding in root cause analysis.
A Scatter diagram is a graphical representation of the relationship between two variables, helping identify correlations or patterns.
The tools can be used in the following areas: Problem Representation (Flow Charts, Run Charts)
Data Collection (Checklist, Histogram)
Data Analysis and Synthesis (Histogram, Pareto Diagram, Ishikawa Diagram and Scatter Diagram)