Odoo views are designed and maintained in Extensible Markup Language (XML). A basic understanding of XML will help you in customizing views, modifying search criteria, and managing workflows. Here is a list of XML resources that you can work with.
Finding XML resources
World Wide Web Consortium XML resource page
The official page for the XML specification is at: http://www.w3.org/XML/.
XML tutorials and documentation
If you are just beginning to learn about XML, make sure that you visit the excellent collection of tutorials and documentation at: http://www.w3schools.com...