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Clusters do not evaluate humanitarian needs in silos, but through an intersectoral process led by OCHA, materialized in a Flash Appeal or a Humanitarian Needs Overview (HNO) or Flash Appeal. Setting up a needs assessment and analysis strategy for the WASH sector will help the coordination platform to make necessary arrangements to gather and analyze the data required to feed the intersectoral needs analysis process. This strategy is prepared by the coordination platform or an assessment technical working group (TWIG), and must be validated by the SAG. The steps to develop the strategy are described in the following sections.:
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