This document outlines the technical architecture for the District Health Information Software 2 (DHIS 2). The DHIS 2 is a routine data based health information system which allows for data capture, aggregation, analysis, and reporting of data.

DHIS 2 is written in Java and has a three-layer architecture. The presentation layer is web-based, and the system can be used on-line as well as stand-alone.

Fig. Overall architecture