Test and Training Enabling Architecture (TENA) is an architecture designed to bring interoperability to United States Department of Defense test and training systems.
TENA is designed to promote integrated testing and simulation-based acquisition through the use of a large-scale, distributed, real-time synthetic environment, which integrates testing, training, simulation, and high-performance computing technologies, distributed across many facilities, using a common architecture.
[3] The TENA software was developed for use by the United States Government with unlimited rights.
The software is provided freely for the purpose of promoting interoperability among United States Department of Defense systems.
There are no International Traffic in Arms Regulations (ITAR) or export restrictions in using the TENA middleware and related TENA products at an international site, although any restrictions for user provided object models, software, or documents are the responsibility of the author(s) of those products.