It’s much easier to add “Image” attribute during upgrade or installation process of your module in the following files:
At first let’s make clear what is Magento application? Magento it’s a CMS (content management system) specially designed and developed for web stores creating, in other words it’s an e-commerce platform. And Magento application it is a component of this system that processes user request and returns the final result.
In the following article I would like to share my experience of Custom Product Type creation and I’d like to guide you how to import it to the system in specific way.