Live coding (sometimes referred to as 'on-the-fly programming', 'just in time programming') is a programming practice centred upon the use of improvised interactive programming. Live coding is often used to create sound and image based digital media, and is particularly prevalent in computer music, combining algorithmic composition with improvisation. Typically, the process of writing is made visible by projecting the computer screen in the audience space, with ways of visualising the code an area of active research. There are also approaches to human live coding in improvised dance. Live coding techniques are also employed outside of performance, such as in producing sound for film or audio/visual work for interactive art installations.