The study suggests that creators should initially create several different possibilities of sequencing the narrative and then compare them to assess the quality of the transitions.
“Maintaining consistency through gradual changes” can support understanding, by emphasizing the importance between concepts. This technique is also referred to as parallelism.
The study shows a preference for remembering “perfect” (non-reverse) parallelism (repetition of sequences within a visualization,) as well as “between-group” sequencing (switching back-and-forth between two different visualization groups.)
Source: A Deeper Understanding of Sequence in Narrative Visualization, Hullman, et al., 2013