By reviewing our behaviour support plans regularly we can ensure they continue to be effective. Periodic service reviews measure the team’s compliance with the plan as well as the integrity of the data collected. Quarterly evaluation reports detail the most recent analysis of behavioural observations allow the support plan to be fine-tuned and an ever more sophisticated understanding of the behaviour to be developed. At the same time, this data can be a valuable source of information to other professionals, informing and influencing their decision-making.