hi experts,

I have a very simple question but I can't find a simple answer.
What is the difference between this 2 methods to increase openerp functionnalties
1 using the user interface wizard
2 by programming directly in python (.py and .xml)

I guess it is a problem of performance but any help is welcom.
Thanks.

Way 2 allows you easier transfer your customizations to a new installation of openERP. Customizations are also more maintainable using this way, so I recommend it.

When you install the module you created, customizations (models, views) are mapped to relations in your database, so you can edit them through the user interface. But your changes are not mapped to code, so they will be lost when you create a new database.