class IAssessment(interface):
    assessment_item=schema.Choice(
        title=u"Assessment Item",
        values=[u"Item 1",u"Item 2"],
        required=False
    )
    reference=schema.TextLine(title=u"Reference",required=False)


class Application(form.Schema,IImageScaleTraversable):
    form.widget(app_assessment=DataGridFieldFactory)
    app_assessment=schema.List(
        title=u"Application Assessment",
        value_type=DictRow(title=u"Application Assessment",schema=IAssessment)
    )

assessment_item=schema.Choice(
    title=u"Assessment Item",
    vocabulary=assessmentItems,
    required=False
)