What is the difference between Validate Scope, Control Quality and Close Project or Phase processes?

Validate Scope

Validate Scope is part of Monitoring and Controlling Process Group and Scope Management Knowledge Area. In this process, the formal signoff from client/key stakeholders on completed deliverables is obtained

Control Quality

Control Quality is part of Monitoring and Controlling Process Group and Quality Management Knowledge Area. In this process, the deliverables are tested to ensure they meet the quality standards

Close Project or Phase

Close Project or Phase Process is part of Closing Process Group and Integration Management Knowledge Area. In this process, the formal signoff from client/key stakeholders on all the deliverables combined is obtained. This process differs from Validate Scope is the sense that sometimes individually certain deliverables could be good to signoff but together as a unit, they should be able to meet the project or phase requirements as well. This is basically a signoff confirming that all parts fit together correctly!

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