Types of Methodologies used in International mapping studies

[jasmine george]

Hello all, 

I am applying for this post where they have sought for outline of methodology to be used in the mapping analysis in a project.

the project involves desktop research, interviews, and in - depth analysis of existing international mechanisms! 

I am bit new to the international consultation process and still learning the different technicalities. I will be glad if people could share their experiences and expertise.

What are the different kinds of methodologies? Is interviews part of this?