  A new model composer is proposed to automatically generate non-anonymous
model replicas in the context of performability and dependability evaluation.
It is a state-sharing composer that extends the standard anonymous replication
composer in order to share the state of a replica among a set of other specific
replicas or among the eplica and another external model. This new composition
operator aims to improve expressiveness and performance with respect to the
standard anonymous replicator, namely the one adopted by the M{\"o}bius
modeling framework.
