Examining Usability Rules with the Aim of Improving User Interaction and Satisfaction in Using Digital Products

The world is getting saturated with technologies that support various activities. These technologies have enabled the existence of very complex systems and services that may be difficult for users to understand the process of interacting with them in different situations. The study of human interaction with today's products, which mainly have high technologies, is one of the new fields of research. Users have different goals in interacting with products, and if they are achieved, user satisfaction will be achieved. The rapid growth of user interfaces has increased the human need to design new processes in order to provide advanced designs. These designs improve usability with computer systems. Undoubtedly, usability is one of the main concepts in the field of human-computer interaction, and one of the goals of interaction design is to help develop usable digital artifacts. Therefore, studying and investigating its role in improving user interactions with digital products is very important. This article expands the definitions of interaction design and its place in the digital world, the rules and principles of this approach, applicability as one of the basic principles of interaction design, and explains the rules of applicability from different perspectives. Also, the features and characteristics that the user interface should have in order to meet the needs of users, have been reviewed. The article concludes that knowing these features and using them in design can reduce errors and provide satisfaction and attract users' opinions in their daily interactions with digital products.