How long does UX process take?
Your project plan should include three months for UX
But in most cases, implementing a user experience process adds about three months to the front end of your project—and UX saves you from tremendous amounts of development rework typically found after release.
When UX design process is implemented?
One of the most important phases in UX design is actually done before the product team creates anything. Before you can build a product, you need to understand its context for existence. The product definition phase sets the foundation for the final product.