This paper describes a integration model to implement replication techniques in heterogeneous systems. The model adopts a reflective structure based on the meta-object approach. Also, this model is founded in ORBs that support group communication in heterogeneous environments. The OMG still does not have specifications for fault tolerance. The MetaFT model has a great flexibility allowing, for instance, to modify the coordination protocols according to the fault tolerance level desired, without any implications for the application code. The advantage is that it allows to use different meta-object protocol to assist different quality of service (QoS) parameters to fault tolerance. This paper explicit our experiences in developing replication techniques following the model using two different CORBA platforms and presents some performance analyzes.