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Quality assurance (QA) is the sum of the planning and the implementations of the plans the project manager, the project team, and management do to ensure that the project meets the demands of quality. QA is not something that is done only at the end of the project, but before and during the project as well.
In some organizations, the quality assurance department or another entity will complete the QA activities. QA is interested in finding any defects and then fixing the problems. There are many different approaches to QA, depending on the quality system the organization or project team has adapted. There are two types of QA: