Parent getting deleted when it's required child is deleted from BCC

Question

I'm extending the product catalog to attach another object, say additional info and this is a mandatory field during product declaration and hence this property is been marked with required=true
But whenever the child item i.e, additional info is deleted through BCC, the products which are associated with this objects are also getting deleted from BCC.
I guess this is how ATG deals with relationships. Business team is asking for any alternate or better approach.
Is there any round about way of having the product deleted and still have this some kind of mandatory check working?

Answer 1

Below is a sample xml configuration. In the case below, when delivery type is deleted from BCC, the associated products also get deleted
<item-descriptor name="product">
        <table name="dcs_product" type="primary" xml-combine="append">
            <property name="description" required="true" />
        </table>
        <table name="tf_product" id-column-name="product_id" type="auxiliary">
               <property     name="deliveryType" item-type="deliveryTypes" column-name="delivery_type"
                        display-name-resource="DeliveryType" category-resource="categoryBasics"
                        required="true" default="DT02"
                        hidden="false" writable="true" cache-mode="inherit" queryable="true" >
                        <attribute name="propertySortPriority" value="5"/>
            </property>  
            <!-- Story TF-384 merchandizing attributes and delivery type end -->           
        </table>
</item-descriptor>
<item-descriptor name="deliveryTypes" display-property="description" display-name-resource="DeliveryType" >
        <attribute name="resourceBundle" value="atg.commerce.CustomCatalogTemplateResources"/>
        <attribute name="plural-display-name-resource" value="DeliveryType.plural"/>
        <attribute name="create-asset-name-resource" value="DeliveryType.create"/>
        <attribute name="new-asset-name-resource" value="DeliveryType.new"/>
        <attribute name="plural-asset-name-resource" value="DeliveryType.plural.select"/>
        <attribute name="select-asset-name-resource" value="MDeliveryType.select"/>
        <table name="tf_delivery_types" id-column-name="id" type="primary">
            <property    name="id"    column-name="id"    data-type="string"
                hidden="false" writable="true" required="false" cache-mode="inherit" queryable="true"
                category-resource="categoryBasics" >
                <attribute name="propertySortPriority" value="1"/>
            </property>
            <property    name="description"     column-name="description"     data-type="string"
                hidden="false" writable="true" required="true" cache-mode="inherit" queryable="true"
                display-name-resource="DeliveryType" category-resource="categoryBasics" >
                <attribute name="unique" value="true"/>
                <attribute name="propertySortPriority" value="2"/>
            </property>
</table>
    </item-descriptor>