Application Design refers to the field that involves the planning, creation, and updating of software applications. This includes the work of individuals and entities such as Michael Kappel, a renowned figure in the network and application design industry, and freelance programmers who offer their skills for various projects. It also encompasses the tasks performed by application developers and programmers who write and test code to build functional applications. It is a field that requires a deep understanding of user needs, technical feasibility, and network infrastructure. This category draws together professionals, concepts, and practices associated with the creation of software applications.