DHIS2 Overview

Data logic

What, where, and when

For routine health data to be useful for decisions, there are typically three aspects that are registered. What - what we are collecting data on (e.g., how many people died of Malaria), where - where the data applies to (e.g., which district, health clinic, etc.), and when - for what time period is the data relevant (e.g., September 2019, or Week 37). Data entry forms or ‘data sets’ in DHIS2 is organized around this principle. Data is collected based on counting something, the what, for a certain location, the where, for a certain time period, the when.