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. 2015 Jul 9;22(3):214–225. doi: 10.3109/09286586.2015.1037401

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FIGURE 3. — Global Trachoma Mapping Project (GTMP) data handling and flow. (1) The field team upload the raw data, which are available for review and download by designated ministry of health (MOH) personnel. (2) The GTMP Data Manager cleans the raw data by checking for and querying (with the field team) any errors, internal inconsistencies or missing data. (3) A designated MOH official evaluates the cleaned dataset, and then either approves it (“approval C”) or queries it; once approved, analyses to generate evaluation unit-level prevalences are run automatically. (4) A designated MOH official evaluates the prevalence figures and either approves them (“approval P”) or queries them. (5) Once approved, categorical prevalence data are uploaded to the Global Atlas of Trachoma (GAT).