Integration Management brings it all together. This knowledge area coordinates and unifies all components of managing a project. It lets the project manager and others see the big picture.

Projects cost money. You may measure the costs to the organization in dollars, yen, or hours or something else. Whatever you use the project must equate the use of resources and effort to some metric to plan for and track. 

How do you measure quality? Do you know it when you see it? How are you going to make certain that quality is always present and not something that requires control after it is already out of control? Lots of questions to consider and think about in this knowledge area.

Communication in a project is essential. There are a lot of moving parts and a lot that must be know and transmitted. Without the proper and most effective communications the project risks breakdowns, failures, misdirection, frustration, and so much more of concern.

Not all resources and needs reside within your project organization. You must procure resources from outside groups, third parties, vendors, and other outlets. Managing those decisions and agreements are core to the Procurement Management knowledge area.

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What needs to be done in the project and how much effort is required to get it done? That is the essence of the Scope Management knowledge area. You don't want to work on things you are not suppose to work on and you don't want to miss anything!

This knowledge area pertains to the time and schedule concerns of the project. Time is important. Projects are temporary. Setting and meeting time expectations are important to project success.

Projects do not just happen on their own. They require resources. Those resources are products, people, materials, and others. You must know what resources are needed, when, for how long, in what form, and how to release them. And when they are part of the project, how to get the most from them.

There are many things that could go right or wrong in a project. How much time and energy you spend on those uncertainties is Risk Management. There are risks you can prepare for or influence or avoid. Know the possibilities, impacts, and strategies on how to handle the unknowns of a project.

Any one affected by the project - whether its outcome or even its operation - are stakeholder. Positively or negatively affected, they are still stakeholders. How do you identify them and work to engage them at just the most beneficial level.