Method, evidence gaps and changelog

Chapter 16

This chapter explains how the report was researched, how figures are graded, which checks were completed, what information was unavailable and what changes between editions. It helps readers assess the evidence for each figure before relying on it.

How the research was done

This report brings together research from published sources. The research was compiled on 24 to 26 October 2026 from public sources only, an editorial review followed on 26 October 2026, and the book was published on 27 October 2026. Nine research passes covered: source markets (two passes), booking channels and OTAs, Google and search, social and video platforms, paid media economics and KPIs, guest and hotel segments, AI, regulation, reviews, email and loyalty, and market history, forecasts and competition. Each pass searched the web, fetched the pages it cited, and recorded every figure with its exact value, what it measures, its geography and period, the publisher, the page title, the URL, the publication date and an evidence grade. Figures that could not be found were recorded as gaps with the name of the organisation that would hold them.

The chapters were then written from those notes alone. Every sentence containing a figure names its source in the text, and each source is listed at the end of its chapter and in the bibliography. A script checks that every citation resolves to a recorded fact, that no chart plots a value absent from the notes, and that no sentence with a number lacks a citation; that check establishes that a citation exists, not that the underlying figure is accurate. Where two sources disagree, both appear in the text with their dates and measurement definitions.

Three rules governed the writing. Nothing was estimated, rounded into a different value, or filled from memory. Geography and period are stated every time a benchmark appears, because most published marketing benchmarks are US or global and must not be read as UAE figures. Analysis and advice sit only in labelled "ONS reading" boxes, so that a reader can separate what the sources say from what ONS concludes.

Verification scope

Facts were recorded from fetched pages; citations were checked by script for existence; and selected material claims were checked against the original publishers in the editorial review of 26 October 2026. Not every reference was independently re-verified. The bibliography at the end lists the 693 documents cited; the fact-level verification register, which ties every figure to its source row and status, covers 789 references and is available from ONS on request. A tiered verification covered headline figures, official statistics, regulatory statements and every chart value. Of the 460 priority references checked, 100 were verified against the original publisher; 348 were qualified, meaning supported with a stated caveat, most often that the figure was read from press coverage of an official release; 10 were superseded by a later release and replaced in the text; and 2 were unresolved and removed. A further 11 references were added and verified by the editor during the review, bringing the verified total to 111 and the checked total to 471. The 318 references outside the priority tiers remain as recorded with their evidence grade and were not independently re-verified. Verification dates: 26 October 2026. Publication: 27 October 2026. Where a cited figure in this book was read from press coverage, a law-firm summary or a vendor page rather than the original release, the chapter text and the source list say so.

Verification status is separate from the evidence grade. The grade identifies who published the figure and the type of source used to record it. The status records whether the figure was checked against its original source and how that check was made. A figure graded Official can be qualified (read through press) and a figure graded Estimate can be verified (the vendor page says exactly what was recorded). Neither grade nor status is a statement that the figure is accurate.

Evidence grades

The grade identifies the type of source; it does not confirm accuracy. Where "via press" or "via law firm" appears, it identifies the intermediary through which the information was obtained. In the regulation chapter, a rule supported only by a law-firm or press summary carries the Industry grade with the summarising source named, even where the underlying instrument is official.

Limits of the method

• Access. Some official pages could not be fetched (DET's performance report PDFs, parts of the Dubai Media Office, UK ONS tables, GASTAT, ATOR). Where a figure was read through press coverage the source list says so.
• Search budget. Several research passes reached their search limit before every planned query ran. The gaps tables below list what was not searched.
• Paywalls. Statista, Euromonitor, VIDEC, HotStats and Kalibri Labs hold figures behind paywalls that could not be read; only their public headlines appear.
• Conflicts. Dubai room counts, ADR series, short-term rental supply, Russian visitor totals, TikTok and Instagram UAE reach, and email benchmarks all have two or more published values. The book shows them side by side and does not pick one.
• Dates. Some benchmarks are old (hotel conversion from 2020 and 2022, abandonment from 2018 and 2019, the only Google UAE traveller study from 2013). They are included with their dates because nothing newer was found in the sources reviewed.
• Verification depth. The editorial review checked priority references against original publishers where those pages could be opened. Some could not (the full HOTREC study PDF, the official GCGRA advertising standards PDF, several DET pages), and those items stay qualified with the limitation stated in the chapter.

Evidence gaps, by chapter

Each gap names what was looked for and the organisation most likely to hold it. A gap may be addressed by asking the data owner for more information. In other cases, the hotel's own records are the only available source. Where the editorial review filled or resolved a gap recorded during research, the row says so.

ONS benchmark programme (proposed)

Changelog and update schedule

How to cite this book

ONS Digital Marketing (2026). ONS Insights: UAE Hospitality Digital Marketing Data Book, Edition 2, 27 October 2026, Dubai. Available at onsdm.com/insights. Figures belong to the sources credited in the master source list; please cite the original publisher for any individual figure.