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Quality Assurance |
Quality Control |
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A planned and systematic set of activities necessary to provide adequate confidence that requirements are properly established and products or services conform to specified requirements. |
The process by which product quality is compared with applicable standards; and the action taken when nonconformance is detected. |
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An activity that establishes and evaluates the processes to produce the products. |
An activity which verifies if the product meets pre-defined standards. |
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Helps establish processes. |
Implements the process. |
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Sets up measurements programs to evaluate processes. |
Verifies if specific attribute(s) are in a specific product or service |
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Identifies weaknesses in processes and improves them. |
Identifies defects for the primary purpose of correcting defects. |
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QA is the responsibility of the entire team. |
QC is the responsibility of the tester. |
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Prevents the introduction of issues or defects |
Detects, reports and corrects defects |
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QA evaluates whether or not quality control is working for the primary purpose of determining whether or not there is a weakness in the process. |
QC evaluates if the application is working for the primary purpose of determining if there is a flaw / defect in the functionalities. |
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QA improves the process that is applied to multiple products that will ever be produced by a process. |
QC improves the development of a specific product or service. |
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QA personnel should not perform quality control unless doing it to validate quality control is working. |
QC personnel may perform quality assurance tasks if and when required. |