In order to resolve problems of the replica selection in data grid environment

a replica selection strategy was presented based on the similar scene recommendation.To link up with characteristics of the data grid environment

factors which would influence the replica selection were grouped into the scene

the user QoS preference and the replica credibility by the strategy.The usability

timeliness and integrity were added to the trust characteristic set together.The user QoS preference was quantified as the weight of credible characteristic too.Thus the integrated assessment model of the replica credibility was built.On the basis

the strategy took the similarity between the scene current required by users and the scene with the replica credibility evaluated into account

set the similarity as the recommended coefficient of a replica

and then selected the special replicas.Simulation experiment results showed that the selection strategy was feasible and effective.