Regd., Embedded Linux Application development using Qt/Qt-Quick

I'm seeing in Qt website that Qt Quick is used for developing embedded applications. At the same time Qt is also used for developing embedded applications.

Now I'm required to develop an embedded linux application. This application consists of custom menus, which invoked shall show some build-in applications. The build-in applications are part of my main application. The built-in applications may be internet/network based ones.
In general the screen size will be 15-inch. I have to implement some cool GUI features like flick, flip, drag & drop, etc.

What should I select for this embedded application: Qt or Qt-Quick ?
What exactly is difference between between the above two(in terms of memory usage & other system level resources) ?

Note: I have read about Qt-Quick in Qt website, but I'm unable to figure out which one to use in embedded linux application.

Thank you.