Desk research against primary sources, with the issuing authority linked where a page states an official fee, rule or deadline.
The 3-term structure means school-related admin is not a one-off September task — each break is also when schools process new admissions, uniform reorders and paperwork for the coming term, so a family arriving in December to start after the Christmas break faces a compressed version of the same rush as one arriving in August.
If you are moving from a Northern Hemisphere school system, note that the academic year here does not map onto a calendar year the way many arrivals expect — a child leaving a school abroad mid-cycle may land in the middle of a Dubai term rather than at a natural break, which affects how much of the previous curriculum survives the transfer intact.