 Some software applications are often regarded as particularly suited for power users, and may even be designed as such, due to their inclusion of sophisticated function and feature sets not typically found in other comparable applications.Examples include VLC media player, a multimedia framework/player/server, which includes a complex, feature-rich, and highly customisable interface (and multiple interfaces moreover, beyond simple skinning) with numerous built-in capabilities not typically deemed useful or even understandable to users in the context of other media player suites such as Windows Media Player or iTunes, and not required by programmers, who can often write a script using a library more easily than interacting with a complex application program such as VLC.User testing for software often focuses on inexperienced or regular users.