  In this paper we describe a novel method for evidential reasoning [1]. It
involves modelling the process of evidential reasoning in three steps, namely,
evidence structure construction, evidence accumulation, and decision making.
The proposed method, called RES, is novel in that evidence strength is
associated with an evidential support relationship (an argument) between a pair
of statements and such strength is carried by comparison between arguments.
This is in contrast to the onventional approaches, where evidence strength is
represented numerically and is associated with a statement.
