You should always test something you need user insight about. This could be

  • a design concept
  • content
  • user journey

When you should test

Testing is important throughout the life cycle of a product or service. This means testing a product or service from early-stage ideas to through to the live service which is available to the public.  

The way people use and interact with a service is constantly changing. This means it needs continuous maintenance and feedback to make sure it: 

  • is up to date 
  • meets users’ needs (these might change over time) 
  • is efficient 
  • does what it was set up to do 

Be clear about why you’re testing

Before you test something, you will need to define what you need to learn. This might come from a problem, hypothesis, or assumption.  

Testing is about finding the best ways to solve a problem. It is not for trying to find evidence to match what you would like a user to say.  

How to test new ideas or concepts

Prototypes allow you to test the idea before making it live to the public. 

Methods to test existing content or products