API

Application programming interface, like POSIX, ANSI C

ANDF

Architectural Neutral Distribution Format;
Name of intermediate language used by ANDF compiler technology

DERA

Defence Evaluation and Research Agency, UK

DRA

Defence Research Agency, a Division of DERA

HLL

High level (programming) language

Installer

Name of ANDF code generator for target platform

OSF

Open Software Foundation

OSSG

Open System Software Group of DERA, responsible for TenDRA

Producer

Name of program that translates programs written in a HLL programming language to ANDF.

TDF

TDF - one of the TenDRA interfaces - is the realisation of the OSF's ANDF.

TenDRA

Name of DERA's language and architectural neutral virtual machine.