DHIS2
DHIS2 is a global public good transforming health information management around the world, developed by the Health Information Systems Program (HISP).
EpiInfo
It is a statistical software for epidemiology developed by Centers for Disease Control and Prevention (CDC) in Atlanta, Georgia (US) and has an ability to develop a questionnaire, customize the data entry process, quickly enter data into that questionnaire, and then analyze the data.
Open MRS
Leading open source enterprise electronic medical record system platform OpenMRS is a Java-based, web-based electronic medical record.
OpenEHR health data platform
‘openEHR’ is the name of a technology for e-health, consisting of open specifications, clinical models and software that can be used to create standards, and build information and interoperability solutions for healthcare.