Scrum : Different Product owner and Project Manager
I have created a short document of two authors : Ken Swchaber and Jeff Sutherland. At definition in this document about Product Owner:

> The Product Owner is the sole person responsible for managing the
> Product Backlog

 I see that `Product owner` is very like to `Project  Manager` in normal software development process. 

So, what does a real difference, or just the same.

Thanks :)
Scrum : Different Product owner and Project Manager
===

I have created a short document of two authors : Ken Swchaber and Jeff Sutherland. At definition in this document about Product Owner:

> The Product Owner is the sole person responsible for managing the
> Product Backlog

 I see that `Product owner` is very like to `Project  Manager` in normal software development process. 

So, what does a real difference, or just the same.

Thanks :)