Statistical Quality Assurance

The Statistical quality assurance reflects a growing trend by organization to become more quantitative about quality and excellence of. For software statistical quality assurance implies the following steps that are given below:

1.  Information about software defects is categorized and collected.

2.  An attempt is made to trace each and every defect to its underlying cause example for non conformance to design error, specification, violation of standards and poor communication with customer)

3.  Using the pare to principle 80 % of the defects can be traced to 20 % of all possible causes, isolate the 20 % the vital few.

4.  Once the vital causes have been identified it moves to correct the problems which have caused the defects.

This relatively simple concept presents an important step toward the creation of an adaptive software engineering procedure in which changes are made to improve those parts of the procedure which introduce error.