SDK (software development kit) is a term that refers to a set of software development tools used to create an application for software packages operating system, computer systems, software framework, and game consoles. A common tool is debugging facilities which are often presented in an IDK (integrated development environment). SDK can also include supporting documentation, such as technical notes and sample codes which a developer can reference while working on a program. Software developers implement specific kits to enable advanced functionalities and other functions, such as advertisements and push notifications. SDK is an essential component in the world of software development.