Adobe Campaign SDLC Phases, Testing and Roles

Hi all,

Does an an Adobe Campaign implementation undergo all SDLC Phases? (Analysis, Design, Coding/Configuration, SIT, UAT, Deployment, Warranty and Maintenance ? yes
Is Agile Project Management Methodology appropriate to Adobe Campaign, if client demands? yes, best suited
How is the system testing performed? Do we create dummy users, Segments and send them campaigns?Yes, and there is more to it but best of them is https://docs.campaign.adobe.com/doc/AC6.1/en/CMP_Campaign_Optimization_Campaign_simulations.htm 
How is UAT Performed? Business users create dummy users, Segments and send them campaigns? Yes, and above
How are the roles named? Adobe Campaign Developers, Adobe Campaign Testers or something different?: read https://docs.campaign.adobe.com/doc/standard/en/ADM_Users_e_Security_Roles.html
Appreciate your responses.

Thanks,

Amit