Abstract: In distributed interactive simulation, the interactions among the multi resolution models of the same entity and the multi-resolution models of different entities may cause the problem of data inconsistency. Based on the analysis of existing multi-resolution modeling methods,a tree configuration modeling method was proposed for multi-resolution modeling in distributed interactive simulation, which is composed of aggregated entity models and platform entity models. In order to solve the problem of data inconsistency in the multi-resolution models of the tree configuration modeling method, the interactive among the multi-resolution models was regarded as the transaction of distributed database management. I}hen a nested 2-phasccommitment protocol algorithm was proposed to settle the consistency maintenance of multi-resolution models.

Key words: Distributed interactive simulation, Multi-resolution modeling, Interactive transaction, Consistency maintenancc, Nested 2-phasec-commitment protocol