Supplier selection is an important component of supply chain management in
today?s global competitive environment. Hence, the evaluation and selection
of suppliers have received considerable attention in the literature. Many
attributes of suppliers, other than cost, are considered in the evaluation
and selection process. Therefore, the process of evaluation and selection of
suppliers is a multi-criteria decision making process. The methodology
adopted to solve the supplier selection problem is intuitionistic fuzzy
TOPSIS (Technique for Order Preference by Similarity to the Ideal Solution).
Generally, TOPSIS is based on the concept of minimum distance from the
positive ideal solution and maximum distance from the negative ideal
solution. We examine the deficiencies of using only one metric function in
TOPSIS and propose the use of spherical metric function in addition to the
commonly used metric functions. For empirical supplier selection problems,
more than one metric function should be used.
Ranking and selection of commercial off-the-shelf using fuzzy distance based approach
