Network-centric Test and Training System

NeTTS is a family of stimulation and instrumentation systems designed to support the D/OT&E of emerging C4I systems via the creation of realistic virtual environments. NeTTS grew out of the ROCS test tool, originally developed for the Marine Corp Operational Test Activity (MCOTEA) and used in numerous DT and OT events. The development of ROCS and its successor systems led to the formation of NeTTS in 2005. NeTTS includes: NeTTS

NeTTS ArchitectureThe concepts behind the NeTTS design are based on GTRI's approach to C4I systems testing and the implementation concepts are driven by years of field experience conducting tests in operational environments. NeTTS is decomposed into two top-level concepts: a backbone framework and plug-ins. The framework manages the definition, distribution, and processing of individual events that constitute actions to be performed on C2 system under test (SUT) interfaces. The NeTTS schema abstracts these top-level functions from the specifics of a particular SUT interface (protocols, message formats, physical layer, etc.). The detailed content definition and mechanics for defining and interacting with a particular SUT interface are all wrapped into a single conceptual package called a plug-in. A plug-in defines the specifics needed to stimulate and monitor the interface and to reduce and manage data injected or recorded at the interface. Plug-ins for ROCS and VETT capabilities have been generated, allowing for a fully coordinated test of IP-based data and voice/video systems.

GTRI's methodology for C4I system T&E focuses on generating operationally meaningful data with which to analyze that system's performance. The two primary goals of this approach are to:
a) Decouple the definition of an operational scenario from the specific details of individual test networks and environments, and
b) Provide a quick and operationally meaningful representation of a wide variety of C4I system and network performance metrics.

NeTTS OperationsTo create the most realistic test environment, stimulation of actual operator interfaces (applications that tie into the C4I network, radio/telephone interfaces, etc.) is the desired method of generating load on the system, as opposed to attempting to model and merely simulate the type of traffic that operationally realistic use of the system would produce. By opting to manipulate and drive these actual operator interfaces rather than simulate their network loading characteristics, the question of whether or not the test event traffic generated on the C4I system-under-test (SUT) is operationally representative or not is eliminated altogether.

The steps involved in a NeTTS analysis include:

More detailed information on each NeTTS tool is available here. For additional assistance, or information on NeTTS in general, please contact Fred Wright.

Last Updated August 29, 2011