To first understand interactions, we must know what they are. Interactions is the transference of information between the sender to the receiver. Different types of interactions include: human-human, machine-machine, and human-machine. An example of a human-human interaction is punching someone in the shoulder. The next step is to exam interaction design, which is designing interactive products to support the way people communicate and interact in their everyday and working lives.
Knowing what to design is important when interaction designing. This includes: knowing what people are good and bad at, what may help people, what will provide the best user experience, taking research data and applying it to the design, and using trial and error techniques throughout the design process. Of course knowing what interaction design is made of, involving numerous fields such as engineering and social sciences, and who is involved in interaction design, like the users and technologies. Dealing with the problems of different ways to approach the design is also key, knowing how to prevent confusion and misunderstanding in the design process amongst members. Knowing that interaction design designs an interface for the user and not creating an initial user experience will help as well. The process of actually doing the interaction design involves a multitude of things.
First you will need to identify needs and establish requirements for the user experience, then develop alternative designs that meet those requirements, build interactive versions of the designs to communicate and be assessed, and finally evaluate what is being built and what user experience is being created. Focus on creating a user-centered experience and observe what technologies would readily use. Building multiple designs will help to envision the project in new ways and perhaps create one ultimate project through the combination of the alternatives designed. Once the designs are built testing should be done to see if the design is truly efficient, creating an optimal testing area where users aren’t feeling pressured to give less than truthful responses, recording the data, and actually implementing the results into the design process. The final point describes a process of testing the product and the user experience thoroughly throughout the entirety of the interaction design, which leads to early testing without users and testing with the user input. After several stages of testing and preparing, the interaction design should be ready. Of course maintenance on the design should be scheduled for unseen variables. Hopefully the interaction design should attain effectiveness, efficiency, safety, good utility, learnability, and memorability. With these factors the interaction design will be more likely to succeed.