Prototype for Pregnancy Test for Visually Impaired Women

The video tutorial introduces a prototype that provides tactile feedback instead of visual feedback. It explains the separation of control and test areas to avoid user confusion. The user can feel a raised area to confirm the product's functionality and determine the test result by running their finger over a tactile test pad. The video includes demonstrations of identifying positive results and emphasizes the mechanical tactile output of the prototype.

What does the raised area on the underside of the product indicate?

Explain the significance of separating the control and test areas in the prototype.