Under OpenERP V7, I am creating a custom module to be able to handle color and size of product.

I created a new object :

from osv import fields, osv
class product_apparel(osv.osv):
        _name = "product.apparel"
        _description = "Object to add colors and size property to a product"
        _columns = {
                'product_id' : fields.many2one('product.product', 'Product', required=True),
                'product_apparel_color' : fields.integer('Color', help='Color'),
                'product_apparel_size' : fields.char('Size',size=3, help='Size')
        }

product_apparel()

class product_product(osv.osv):
        _name = 'product.product'
        _inherit = 'product.product'
        _columns = {
                'product_apparel_id' : fields.one2many('product.apparel', 'product_id', 'Apparel Schema')
        }

and a view to display the 2 new properties :

<?xml version="1.0" encoding="utf-8"?>
<openerp>
        <data>
                <record id="view_product_apparel_form" model="ir.ui.view">
                        <field name="name">product.apparel</field>
                        <field name="model">product.product</field>
                        <field name="inherit_id" ref="product.product_normal_form_view"/>
                        <field name="arch" type="xml">
                                <field name="product_apparel_color"/>
                        </field>
                </record>
        </data>
</openerp>

But when installing I am facing the following error :

except_orm: ('ValidateError', u'Error occurred while validating the field(s) arch: Invalid XML for View Architecture!')

Is-it because of my : <field name="name">product.apparel</field> <field name="model">product.product</field> ?