The U.S. Army currently performs live training with many different Multiple Integrated Laser Engagement System (MILES) training devices. The MILES Tactical Engagement Simulation (TES) hardware and software for these systems is vendor proprietary. This software provides the same general capabilities for each TES system including: conformance to the MILES Communication Code (MCC) Standard, battle damage assessment (BDA) feedback and exercise event storage for after action review. These proprietary systems do not allow the Army to interchange components between them or to ensure that the BDA is performed consistently across vendors.

This paper describes a service-oriented approach to solve these problems using the Live Training Engagement Composition (LTEC), an Army-owned architecture framework and set of composable software services. The Army plans to require the use of LTEC in future solicitations. The software is available through the Army's Live Training Transformation Portal. To enable reuse across TESS hardware configurations, LTEC abstracts operating system and communication protocol details from its services and it uses services to integrate with TES system components. The composability of the architecture also allows for easily configuring the capabilities provided. For instance, a low-fidelity BDA service could be swapped out for one that supports medic training or support for energy weapon engagements could be added to LTEC just by adding a service. By providing reusable TES software, LTEC reduces the cost to develop TES systems, ensures fair fight between those systems, and provides a path forward to embed/append common TES onto platforms and in future TES devices.