Research for Computer Simulations

The computerized adaptive version of the Armed Services Vocational Aptitude Battery will use a Bayesian procedure for computing test scores. Properties of three common Bayesian procedures are examined in this research memorandum. The results show that the procedures are almost equally reliable and that reliability drops if item parameters change from paper-pencil to computerized administration.

This Research Memorandum presents technical appendixes to supplement the Total Force Enlistment Programs Simulation. It is divided into four sections. Appendix A contains a guide to assist users of the simulation methodology. In addition to a detailed example of the use of the simulation, it discusses some of the potential uses not explored in Volume I. Appendix B is a description of the methods used in computing the active-duty inventories and continuation behavior. It also lists some of the important active-duty data elements used in the simulation, as well as the major computer programs used to generate these data. Appendix C presents similar descriptions for the SELRES data. A flowchart of the simulation methodology and annotated versions of the simulation programs appear in Appendix D.

This paper describes some of the important elements of wargame design, development, and play. Wargame design is the art of creating a warfare model or simulation to be used in wargaming; wargame development is the process of testing and refining that model to make it more effective in achieving its objectives; and wargame play is the exercising of the model by becoming an integral part of it.

CNA is developing the Aviation Logistics Model (ALM), a simulation model of aviation maintenance and supply aboard an aircraft carrier. The model will be used to support CNA's effort to improve supply and repair policies. ALM is based on a new methodology designed to take full advantage of the structured maintenance and supply data collected on Visual Information Display System-Maintenance Action Forms (VIDS-MAFs). This research memorandum shows the directions being taken during the development process and assumptions being built into the model. It contains an overview of the idea behind the model and the intended use of the model, and a technical description of the current direction of model development.