Human-in-the-Loop (HITL) Modeling & Simulation (M&S) is a model type that requires human interaction during runtime. It employs one or more human operators in direct control of the simulation/simulator or in some key support function. Human-centered M&S is distinguished from science and process-based simulations where human intervention and modeling does not occur. [1]
Human-in-the-Loop lends itself the ability for the user to change the outcome of an event or process. HITL is extremely effective for the purposes of training because it allows the trainee to immerse themselves in the event or process. The immersion effectively contributes to a positive transfer of skills acquired to the real world. This can be demonstrated by trainees utilizing flight simulators in preparation to become pilots. [2]
HITL allows users and engineers to gain better knowledge about how humans will react to process or systems during the development phase. It shows were human interface problem could exist which allow for redesign and improved requirements definitions. This saves time and cost from redesign once a system is fielded. HITL is often referred to as interactive simulation.
Examples of HITL include:[2]
- Flight Simulators
- Driving Simulators
- Marine Simulators
- Select Computer & Video Games
AcqLinks and References:
- Modeling & Simulation Guidance for the Acquisition Workforce – Oct 208
- DoD Instruction 5000.61 “DoD M&S Verification, Validation, and Accreditation (VV&A)” – 9 Dec 2009
- DoD 5000.59 “DoD Modeling and Simulation (M&S) Management” – 8 Aug 2007
- DoD “M&S Body of Knowledge (BOK)” – June 2008
- DAU “Test and Evaluation Management Guide” – Chapter 14 – Jan 2005
- SMC “Systems Engineering Handbook” – 15 Jan 2004
- DoD 5000.59-M “M&S Glossary” – Jan 1998
- DoD “M&S Glossary” – 1 Oct 2011
- Acquisition Modeling and Simulation Master Plan – 17 April 2006
- White Paper: JHU APL “Best Practices for the Development of M&A” – June 10
- White Paper: Introduction to Modeling and Simulation by Anu Maria
- White Paper: Introduction to Modeling and Simulation
- Presentation: Manager’s Guide to the High Level Architecture (HLA) for M&S – 11 May 2009
- Website: Air Force Agency for Modeling and Simulation
- Website: Army Modeling and Simulation Office
- Website: DoD M&S Coordination Office (MSCO)
- Website: DoD M&S Catalog
- Website: Simulate Interoperability Standards Organization (SISO)