Research Shona

Political documentaries contain many of the same conventions as other documentaries such as talking heads; interviews conducted in a plain room or room reflecting the subjects position or character, archival footage and voice over narration as seen on the site
http://www.documentarysite.com/conventions.html

Whilst researching political documentaries and how they are targeted at a specific audience i came across a chart created by CinemaNet Europe which shows how they research concepts when considering a new programme