What is change control and its types.

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Change control is the process of managing changes to a project or system in a controlled and systematic manner.

Change control involves documenting, evaluating, approving, and implementing changes to a project or system.
Types of change control include preventive, detective, and corrective.
Preventive change control aims to prevent issues before they occur, such as implementing quality assurance processes.
Detective change control focuses on identifying issues as they occur, such as regular audits or inspections.
Corrective change control involves addressing issues after they have occurred, such as making adjustments to correct errors or defects.

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