I'm kind of late to this party but I thought I would ask anyway as I haven't found a concrete answer.
When creating a game engine, when should you choose one methodology over another (more specifically OOP and DOD)?
Which areas benefit from DOD?
Which areas benefit from OOP?
Do people typically mix multiple methodologies throughout a project?
I.e. certain sub-systems created in one, and others in the another?
DOD - Data Oriented Design
OOP - Object Oriented Design