PostgreSQL

OpenEyes is a collaborative, open source, project led by Moorfields Eye Hospital. The goal is to produce a framework which will allow the rapid, and continuous development of electronic patient records (EPR) with contributions from Hospitals, Institutions, Academic departments, Companies, and Individuals.
The initial focus is on Ophthalmology, but the design is sufficiently flexible to be used for any clinical specialty.

The system hospital osiris, it is a program for the administration of hospitals, this constructed in Glade+Mono+Sharp+GTK# and run GNU/Linux

Weka is a collection of machine learning algorithms for data mining tasks. The algorithms can either be applied directly to a dataset or called from your own Java code. Weka contains tools for data pre-processing, classification, regression, clustering, association rules, and visualization. It is also well-suited for developing new machine learning schemes.

ATNA is an IHE security profile representing Audit Trail and Node Authentication. OpenATNA is an implementation of an Audit Record Repository supporting RFC 3881 audit messages over BSD Syslog as well as RFC 5424-5426 (UDP and TLS).

OpenATNA Features:

• Optimizes the database so that entities such as active participants, audit sources, participant objects and codes are not duplicated for every message received.
• Performs validation of messages as they arrive.
• Optionally logs errors as well as audit messages.
• Supports TLS and UDP.