Qualitative and quantitative indices for simulation systems in distributed interactive simulation

The fidelity measurement question in distributed interactive simulation (DIS) needs to be answered. Its resolution is crucial to defining and resolving the interoperability issue of “how to compare and contrast simulations of varying fidelities on a quantifiable basis”. Once such a measure of fidelity is modeled, it would allow high fidelity simulators to play fairly with low fidelity simulations. The Fidelity Subgroup of the DIS Standards Development Project has developed a Draft Fidelity Description Requirement (FDR) document, in a hierarchical taxonomy format. This framework provides an object oriented modular referent to model. The input and output descriptors are defined verbally, linguistically. Recent research would suggest this linguistic base can easily be transformed into quantifiable measures, indices. The paper provides a methodology for providing quantifiable fidelity indices through the application of fuzzy logic