Plugin: Fill Record with data (auto generated form) Is there a way to generate a form based on my record-attributes ? Like a quick and dirty CRUD-Interface to get started ?

And otherwise: where would I create such forms ? Are those Controllers ?
I believe what you're asking is if there is any built-in scaffolding support in Craft.

If that's the case, then no... you'd have to manually build out the forms and CRUD support.

Yii does ship with a component called gii that enables scaffolding, but it's currently not compatible with Craft and we don't support it.