Difference between Operations in Manufacturing module and Tasks in Project module

Hi Frappe Community,

I want to setup manufacturing for my company which is basically needs an Engineer-to-Order type of production planning and as suggested by ERPNext documentation I should be using Manufacturing module along with the Project Module.

Can anybody clear up the difference between tasks( in project module) and operations( in manufacturing module), and how both the modules can be used in conjuction to each other and compliment each other. I don’t want to create duplicates by expressing the same process once as a task and once as an operation. How to imlement this kind of thing ?

Go easy on me if I sound dumb. I am pretty new to ERPNext.