PT. XYZ is a company engages in service consultant of building construction,
and also interior design, located in Yogyakarta. This research began with
problem occurred in service consultant of building construction, and also interior
design in selecting the best suppliers by determining the rank of priority suppliers.
In current situation, PT. XYZ has no standard method to selecting suppliers, it
might be affect the company’s business performance if they choose the wrong
suppliers. The object of this research is focused on interior design of PT. XYZ.
The one of materials most used for interior design by PT. XYZ is HPL (High
Pressure laminate). Therefore, the supplier’s selection will affect company’s
performance. PT. XYZ has five suppliers of HPL, and they want to rank HPL
suppliers based on criteria determined by the company.
In this supplier selection involved more than one criterion, therefore Multi Criteria
Decision Making (MCDM) is required. The method is used with the integration of
Fuzzy Analytical Hierarchy Process (FAHP) - Fuzzy Technique for Order of
Preference by Similarity to Ideal Solution (FTOPSIS). The FAHP method is used
to overcome the limitations of the AHP method of inability to consider the
uncertainties arising from human subjectivity. The FTOPSIS method covers the
weaknesses of AHP. A lot of pair wise comparison matrix judgment that must
regard the hierarchy level, criteria, alternative, and the objectives in AHP method
makes AHP method can do consistency test. Consistency test makes this
judgment can eliminate the respondents who are not competence. TOPSIS
method has fewer comparison matrix judgment that regardless the hierarchy,
criteria, and alternative. TOPSIS cannot do consistency test, therefore, the truth
levels or the validity levels of TOPSIS cannot be known.
The results showed that there are 4 criteria considered in supplier’s selection of
PT.XYZ. These five criteria are price, quality, delivery, and guarantee. The result
of using integration of FAHP-FTOPSIS got the order of supplier as follows: weight
0.65 for PT. Laminatect Creation means, weight 0.62 for PT. Abadi Jaya
Multiguna, weight 0.43 for Draco Solo, weight 0.38 for Greenlam Laminates (Aura
Praba), and weight 0.18 for Haveel Center SMG.