Design Sprint Kit
Phase Five
The Validate phase is the Design Sprint moment of truth. Your team will finally get to see live users interact with their ideas and hear direct feedback from your target audience.

Watching your users try out the prototype is the best way to discover major issues with your design, which in turn lets you start iterating immediately. On many product teams, the user experience designer or the researcher are the primary people who interact with users; in a Design Sprint everyone on the team observes the Validation sessions. This is critical to capturing learnings, putting concepts to the test, and making the theoretical tangible by exposing product decision makers to user feedback in real time.

For Validation with your end users you might set up a Usability Study or Cognitive Walk Through.This is also a good time to get feedback from Technical Experts or Leadership Stakeholders.