An interaction refers to a communication or exchange between two or more entities, such as people, systems, or objects. Interactions can occur in various forms, such as verbal communication, gestures, or other types of behavior. In the context of computer systems, interactions can refer to the communication between humans and machines, such as using a mouse or keyboard to input data, or interacting with a virtual assistant. Interactions are an important aspect of human-computer interaction and are studied to create user-friendly interfaces and improve the overall user experience. Effective interactions can lead to increased productivity, efficiency, and satisfaction in various domains, such as healthcare, education, and entertainment.