Gtm Mumps

http://en.wikipedia.org/wiki/GT.M (WikiPedia*)

"GT.M is a high-performance database engine, optimized for transaction processing. GT.M is also an application development platform and a compiler for the ANSI/ISO standard M language, which was formerly known as MUMPS.

GT.M originally stood for Greystone Technology M and was developed by Greystone Technology Corp. It is an implementation of ANSI standard M for various UNIX systems and for Hewlett-Packard's OpenVMS system. In addition to preserving the traditional features of M, GT.M also offers an optimized compiler that produces object code that does not require internal interpreters during execution."

Subject:	MUMPS
Subject:	Open Source
Subject:	Hierarchical