Quality assurance is the process of detecting defects as products are being developed. Quality control is the act of detecting defects in already made products.
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quality assurance refers to activities associated with guaranteeing the quality of a product or service. quality control is based on the scientific method, which includes the phases of analysis, relation, and generalization.
The inputs to the quality assurance process are:Output from quality planning - The following output items from the quality planning process become the input to the quality assurance process:• Quality management plan - This plan is the output of the quality planning process, and it describes how QA will be performed for this project.• Quality metrics - A quality metric is an operational criterion that defines in specific terms what something (such as a characteristic or a feature) is and how the quality control process measures it. The quality metrics developed during quality planning, such as defect density, failure rates, reliability, and test coverage, must be employed during QA.• Process improvement plan - The process improvement plan, helps improve the quality of the project and must be implemented during QA.
A job description provides the quality assurance professional with the list of tasks performed in a particular job and the performance steps (procedures) required to perform each of the tasks.
Quality ControlEmphasizes testing of products to uncover defects, and reporting to management who makes the decision to allow or deny the release.Quality AssuranceAttempts to improve and stabilize production, and associated processes, to avoid, or at least minimize, issues that led to the defects in the first place.
what is quality