Periodic controls are ones that should be performed every now and then, at a frequency that meets the specific needs of the project. Controls of this type differ from the ongoing controls described earlier mainly due to the frequency at which they are performed. In order to manage project resources efficiently, differentiate must be made between these two types of controls. Otherwise, the project manager might end up implementing too rigorous a schedule of controls—one that would hinder and harm the project rather than support it.
Here are some well-known periodic controls that you can perform in your project: