Distributed Virtual Environments that refer to the distributed computer and network systems are usually applied to simulations

especially to the large-scale battlefield simulations.One of their challenging issues is the time-space consistency problem.In recent years

consistency maintenance in distributed virtual environments is well studied by many researchers.The schemes can be summarized as follows:Local Lag

Time Warp

Dead Reckoning

Lock

Token and so on

but they are far from well studied.This paper focuses on the inconsistency caused by the network transport delays.There are three causations that result in the time-space inconsistency in the Environments.To maintain the consistency

this paper proposes the concept "delayed status consistency" and the related methods.Based on the concept

a distributed virtual environment model is proposed to make the methods practical for the simulation applications.The experiment result shows that our methods are suitable for the applications in distributed virtual environments.