Salesforce Platform Developer I Certification Guide

Standard controllers

A standard controller is also called a Visualforce controller because you only use these controllers in a Visualforce context. If you need to create a button on an object to display a Visualforce page, you'll need to use a standard controller.

Standard controllers already contain some standard logic, like save a record, delete a record, and so on, so you can use this functionality without any extra classes or writing extra functionality. This functionality results in the same behavior as the functionality in the standard page layouts of Salesforce. The save functionality of your standard controller, Account, is the same functionality that you will use to save an account in the standard Salesforce pages.

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