Continuity Editing

This style of editing, is one in which the cuts between shots is rendered invisible, keeping the viewer engrossed in the narrative of the film, rather then being distracted by post-production editing and the cinematography.
This style of editing includes a range of techniques, from 180 degree rule to match on action.
The 180 degree rule is a technique used by editors, to create the sense of a conversation occurring between the actors on screen. A hypothetical "line of interaction" splits the centre of the stage, which forces filming to be on only one side. An example of this would be where two actors are talking, possibly sitting down facing each other. When communicating between one another, the camera must stay on one side of the line of interaction at all times, to maintain the eye to eye dimensions, otherwise the credibility of the scene is lost to the audience.
Match on action is another technique involved in Continuity Editing, which allows a single camera to film a certain movement, then move to another location with the same camera, and film the same movement from a different angle. This gives the impression of a single movement being filmed by two cameras, because the editing between shots is "invisible" due to the post production frame editing. An example of this technique, would be somebody opening and walking through a door. A camera could be placed facing the opening door straight on, the actor walk through and then the camera placed onto a crane to film an aerial shot, from which the actor walks through the door again. Close frame editing after filming, would allow the cut between shots to be seamless.