UIViewController Title attribute in Storyboard

Question

I am setting the title field of a UIViewController via Interface Builder/Storyboard:

Answer 1

a) If I am not using Storyboard but just regular xibs, setting the title of a view controller implicitly sets the navigation items' title as well as the tab bar item's title. But it's not the same storyboard. Is this the intended behavior?

I believe this is the intended behavior. I think that the purpose of the title attribute of a view controller is more of a property that can be used at the developer's discretion perhaps for distinguishing between controllers.

Another reason for this change I think is that your navigation item's title may need to be different than the tab bar title, since the tab bar title cannot be nearly as long as the navigation title.

b) What is then the purpose of the view controller's title (in Storyboard)? it seems to have no effect.

I think I mentioned this in my first paragraph. I think that the title attribute of a controller is a property that the developer can use perhaps for distinguishing between controllers.