Yes it does. WebRatio lets you model without considering which is the database type you want to use. If you want to learn about how to model CRUD , you can watch these online lessons on learn.webratio.com:
- http://www.webratio.com/learn/learningobject/data-management-ifml-model
- http://www.webratio.com/learn/learningobject/data-management-action-definition
If you to learn about how to connect with a database, for instance a MySQL database, you can watch this lesson:
- http://www.webratio.com/learn/learningobject/connecting-the-database
You do not need to create any custom metadata provider. This action is needed only if you want to add to WebRatio the support of a database which is not included in the available list. MySQL is included by default.