Basically, interaction means communication between a user and computer, be it direct or indirect. Direct interaction involves a dialog with feedback and control throughout the performance of the task. Indirect interaction may involve background or batch processing. The important thing is that the user is interacting with the computer in order to accomplish something. Interaction design is the interface of technology that we use in our daily life for example in our smart phone or in our laptops. It is mainly focused on satisfying the needs and desires of the users who will use the product.
Along the process of interaction design, designers must be aware of the aspects in their designs that influence emotional responses in target users and they must consider the functionality and the usability. These aspects include positive, negative, motivational, learning, creative, social. One method that can help convey such aspects is the use of expressive interfaces. In software, for example, the use of dynamic icons, animations and sound can help communicate a state of operation, creating a sense of interactivity and feedback. Interface aspects such as fonts, color pallet, and graphical layouts can also influence an interface's perceived effectiveness. A human-computer interaction (HCI) which includes methods for describing and testing the usability of interacting with an interface, such as cognitive dimensions and the cognitive walk-through. Interaction design are important as it will make our life easier with a friendly interface that could make us more comfortable using the technologies nowadays.
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