I have a model that I assign to a delegate in qml, what is the difference in passing properties:

model

ListView {
    model: myModel
    delegate: Label {
        text: model.name
    }
}

modelData

ListView {
    model: myModel
    delegate: Label {
        text: modelData.name
    }
}

required property

ListView {
    model: myModel
    delegate: Label {
        required property string name
        text: name
    }
}

Also I noticed that if I use the QAbstrastListModel then only the last option will do, why this?