Difference between a domain area and a knowledge area

Question

In the PMP exam (or the PMBOK), what is the difference a domain area and a knowledge area? Or do both terms mean the same thing?

Answer 1

No, domains are difference from knowledge areas. Also I'm not sure they are actually called "domain areas". I believe it's just domains.

Anyway, here are the project management domains (for the PMP, and according to PMI):

1- Initiation
2- Planning
3- Executing
4- Monitoring and Controlling
5- Closing
6- Professional and Social Responsibility

You will notice that the domains are almost identical to the project phases or process groups, with the exception of the "Professional Social Responsibility", which is not a project phase (or process group). There are 6 domains.

Each domain constitutes a section in the PMP exam (where you may be below proficient, moderately proficient, or proficient).

Domains are mentioned in the PMP Handbook ( http://www.pmi.org/Certification/~/media/PDF/Certifications/pdc_pmphandbook.ashx )

As for knowledge areas, there are 9, and they are mentioned in the PMBOK:

1- Integration
2- Scope
3- Time
4- Cost
5- Quality
6- HR
7- Communication
8- Risk
9- Procurement