Here Product View you will find ean13 field in product_normal_form_view.

Enable the "developer mode" on the About menu, then hover the object you want to modify. That will give you the information about the model (class name) you want to work with. Then you have to go to Settings > Customization > Database Structure and locate the model. In the model form you will find the information about the modules that create and maintain the model you wish to modify

Thank you for the information on where to find the applicable model.

I did as you suggested and used Settings > Customization > Database Structure > Models to locate the model, in this case the Field Name "ean13" is in the product.product model/module.

I do see under Settings > Customization > Database Structure > Models / Product that the field named "ean13" has a Field Label of "EAN13 Barcode", but when I look through the code @ OPENERP/ADDONS/PRODUCTS/ I cannot find the XML file that sets this Field Label.

I would expect to see something like:

<field name="ean13"/>
<label for="EAN13 Barcode"/>

But I can not find the applicable code.

Any assistance is appreciated.

UPDATE: I now see where the "EAN13 Barcode" is set...

In the product.py code the _columns include: 'ean13': fields.char('EAN13 Barcode', size=13, help="International Article Number used for product identification."),

UPDATE 2: WINDOWS does not normally search the contents of .py files. To make windows search the contents of a .py file do the following (From AgentPete answers.mircosoft.com)

a. Hit the start button and type "search" in the search box. b. Select "Change How Windows Searches" c. Hit "Advanced" d. Select the "File Types" tab. e. Make sure the file extension for the files you want to search in is on the list and is set to "Index Properties and File Contents"

Hope this helps someone