The user interface, or UI, is the part of a product or service that the user interacts with. It includes the visual design, layout, and controls of the product or service.  To design a user interface, designers should start by understanding the needs and goals of the target users and the context in which the product or service will be used. They should also consider the branding and style guidelines of the company.  The design of the user interface should be based on user-centeric design principles and should be tested with users to ensure it is effective and intuitive. The design should also be responsive and work across different devices and screen sizes.  Problems or issues that were identified and the impact they had on the user's ability to complete tasks. It should also include recommendations for improving the usability of the product or service based on the findings of the testing.  In addition to the summary of findings, a usability report should also include detailed information on the testing methods used, the participants, and the tasks they completed. This information can help stakeholders understand the context and significance of the findings and recommendations.