HOSxP is a hospital information system, including Electronic health record (EHR), in use in over 70 hospitals across Thailand. The software aims to ease the healthcare workflow of health centers, for small anitariums to central hospitals.
Before becoming HOSxP, the software was called KSK-HDBMS. Seeking a more friendly name, the development team opted for the name HOSxP, which comes from Hospital and Experience. The name also reflects the software's graphical user interface, which mimic the theme of Windows XP, no matter what actually the underlying operating system.

HOSxP uses a client–server architecture. For the database server, it is claimed to run on many RDBMS, like MySQL, Microsoft SQL Server, PostgreSQL, and Interbase/Firebird.
Client–server (two-tier)
a server software can run on either Linux or Microsoft Windows
a client software can run only on Microsoft Windows
Multi-tier technology (Borland DataSnap)
Distributed Component Object Model (DCOM)
Borland Delphi and its Linux counterpart Kylix are the integrated development environments of choice in the project.
A user is allowed to write scripts in the Pascal programming language to automate tasks in HOSxP.

(source: http://en.wikipedia.org/wiki/HOSxP)