Usability and interaction design are fields that are becoming more and more important for every design. Both fields consider the interactions between the user and a system; accordingly, it also applies to the interaction between users and web-sites.
A product has more chances to be successful if it’s design makes emphasis on usability. Making a website easy to use and easy to understand has direct economical impact as, for example, it guides the users across the sites, helps user to successfully sign up for a service or to complete a checkout.
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