Zend_Rest_Controller and Zend_Rest_Route use cases
===

I'm following these tutorials thoroughly and must say they're great tutorials!

http://www.techchorus.net/create-restful-applications-using-zend-framework

I'm just confused about the whole concept of Zend_Rest abstract methods. In the examples, you only see

index
POST
GET
PUT
DELETE

While these functions make sense, I'm trying to figure out if the whole architecture is only limited to those abstract methods. I'm thinking about a use case where a consumer wants to use the API to update specific fields in lets say the user table, or another case where the consumer wants to update activity table. The business logic of these two tables are covered in one RESTful api controller. I would tackle this problem by creating specific update/post method for each table, and have function parameters to define which fields are being updated. Would this kind of implementation conform with REST and if so how do you go beyond POST,GET, PUT, DELETE methods? 