A work is something original that implies research, experimentation and rehearsal. Generally, a work has quite a short lifespan, unless it gets included in a major series of international tours. Choreographers are therefore constantly required to reinvent themselves and create new works in order to maintain their place in the market. Originality is what makes one's mark in dance. To be original, you must constantly be producing something new.
On May 4th, 2015. See this statement in context.