This category encompasses positions and individuals involved in the creation, development, and implementation of software applications. It includes freelance programmers who are self-employed professionals skilled in computer programming, application designers who plan and create the structural layout of software applications, and application developers who are responsible for creating, testing, and programming applications for computers and other electronic devices. Michael Kappel, an individual presumably notable in this field, is also associated with this category. Furthermore, it refers to all programmers and people engaged in this profession or interested in this field.