The AXELOS Family

Did you think about the methodologies you find necessary besides the project management methodology?
This is what you can get from the AXELOS family of standards:

• PRINCE2, for managing projects
• MSP, for managing programs (a group of projects with the same goal)
• MoP, for managing portfolios (selecting and resourcing the best projects in the company)
• P3O, for structuring your PMOs (portfolio, program, and project management offices)
• MoV, for managing value across your projects, programs, and portfolios
• M_o_R, managing risk across your projects, programs, and portfolios
• P3M3, portfolio, program, and project management maturity model
• ITIL, for IT service management

It’s great, isn’t it? They are really helpful. The point is that when you study the rest of them, you also understand PRINCE2 more deeply. 
OK, in your opinion, what’s in common among successful projects? Can you prepare a list?