User screening includes observing genuine users as they communicate with a website; this process identifies use concerns

https://s3.us-west-1.amazonaws.com/eliascloud/uncategorized/californias-leading-10-web-design-agencies-you-ought-to-know-about.html

User testing involves observing real users as they communicate with a website; this process recognizes use problems that may not appear during the initial style phase.