  ConArg is a suite of tools that offers a wide series of applications for
dealing with argumentation problems. In this work, we present the advances we
made in implementing a ranking-based semantics, based on computational choice
power indexes, within ConArg. Such kind of semantics represents a method for
sorting the arguments of an abstract argumentation framework, according to some
preference relation. The ranking-based semantics we implement relies on
Shapley, Banzhaf, Deegan-Packel and Johnston power index, transferring well
know properties from computational social choice to argumentation framework
ranking-based semantics.
