sale_order_barcode/wizards/sale_order_barcode_view.xml

<?xml version="1.0" encoding="utf-8"?>
<openerp>
    <data>

        <record id="sale_order_barcode_view_form" model="ir.ui.view">
            <field name="name">Sale Order Barcode Form</field>
            <field name="model">sale.order.barcode</field>
            <field name="arch"  type="xml">
                <form string="Sale Order Barcode Wizard">
                    <group name="product">
                        <field name="product_barcode" string="Codigo de barras"/>
                        <field name="product_id" options='{"no_open": True}' invisible="1" />
                        <field name="product_name" options='{"no_open": True}' string="Producto" readonly="1"/>
                        <label for="product_qty" string="Cantidad"/>
                        <div>
                            <field name="product_qty" class="oe_inline"/>
                            <field name="product_uom_id" options='{"no_open": True}' class="oe_inline" invisible="1"/>
                        </div>
                        <field name="type" invisible="1"/>
                    </group>
                    <footer>
                        <button name="save" type="object"
                            class="oe_highlight" string="Guardar y Nuevo"/>
                        <!--     or
                        <button special="cancelar" string="Cancel" class="oe_link"/> -->
                    </footer>
                </form>
            </field>
        </record>

        <record id="sale_order_barcode_action" model="ir.actions.act_window">
            <field name="name">Interfaz de Búsqueda</field>
            <field name="res_model">sale.order.barcode</field>
            <field name="view_mode">form</field>
            <field name="target">new</field>
        </record>

    </data>
</openerp>