I'm new at QT, actually I didn't start yet but I'm intending to create a xml file (markups and nodes and everything .. ) from a QT user interface.

For example the user can find in my interface text fields where he can insert an employee name, id and age and my program will turn that to an employee node in my output xml file with its attributes name , id , age. so since I'm coding with c++ I wanted to create this interface as a QT GUI but I found that QT creator provides a project named QT Widget with the same option.

So I'm kind of confused now and I don't know what's the difference between them so I can chose.
I will appreciate any help from guys.