Quality means that the company can consistently meet or exceed the customer requirements or expectations by its products usually customers have different needs and expectations, so the quality is customer-dependent with respect to the design, production, and service. Quality also can prevent problems, instead of trying to fix them which will ultimately decrease the cost production and raise the value of the product as well in the long run, by having good quality is a competitive advantage against the competitors in the marketplace, if the company fails to reach the quality standards, company’s reputation and image will be affected (William J. Stevenson, 2012), on the other hand good quality can results the follows: …show more content…
2- Check sheet that used to identify problem.
3- Histogram chart (an empirical frequency distribution) which used to show the observed values distribution.
4- Pareto analysis that focusing on the most important problem areas.
5- Scatter diagram which is a graph that shows the degree and direction of relationship between two variables, it is useful to show the value of the correlation between two variables.
6- Cause-and-effect diagram which is a structured approach to search for the possible cause(s) of a problem.
7- Run chart which used to track the values of a variable over time, and identify the trends and patterns that may …show more content…
Quality control is the core of quality as it evaluates output relative to a design specification and takes corrective action when output doesn't meet the standards, and periodically inspection and checks shall be done, Inspections are appraisal technique that compares to the standard. Inspection is a vital aspect of quality control and service operations, Inspection check shall be done 3 points:
Before production which check the acceptance of the inputs.
During production which check the processing of the inputs is done in acceptable manner.
After production to make final verification of goods (involves acceptance sampling procedures)
The quality control is measured statistically by the following measures:
Statistical Process Control
Periodically taking