These are the conventions of a documentary put in to essential and non essential areas.

This is a hierarchy of the importance of documentary conventions. I decided that interviews were the most important as they usually make a programme more like a documentary. I also put titles and introduction of topic near the top as I think this is imortant because it makes the documentary clear for the audience. I put non diegetic music at the bottom of the heirarchy because I thought this wasnt an important convention for making a programme a documentary.