Group decision-making is one of the most important issues in product development. In
order to tackle the vague and sometimes conflicting decision data, this paper presents a new approach
based on fuzzy similarity and fuzzy compromise to deal with the fuzzy nature of group decisions. In
the proposed method, a modified fuzzy Analytical Hierarchy Process method is used to get the
criterion weights, a novel consensus aggregation algorithm is given to obtain the conflict-free results,
and an improved compromise decision means is utilized to calculate the utilities of alternatives.
Finally an integrated product development solution evaluation process is illustrated as a numerical
example, and the corresponding software package is also developed.
