Product quality analysis: An empirical aluminium window product customer satisfaction survey.

The Importance Performance Analysis (IPA) method is an appropriate tool for analyzing each product attribute which is its strengths and weaknesses, as well as determining the scale of preference of customer needs for the product. The objective of this research is aluminum window products by conducting a survey of 79 customers of aluminum window products using Slovin formula with 90% confidence level.the IPA matrix was applied to see the importance of focus on customer satisfaction needs. As the results, the validity and reliability tests on the performance indicators show the value of which is more than 0.1864 and cronbach alpha value 0.949, where the number is said to be eligible because it has met the specified conditions, while the importance indicator shows the value as more than of 0.1864 and Cronbach alpha 0.873. The result has shown that to be feasible because it has exceeded the minimum limit. In the Cartesian diagram the processing results of the IPA method show that there are 7 attributes that are the main priority to be improved, namely non leaking windows, airtight windows, can be waterproof on high surfaces (installed in tall buildings), can be wind resistant when installed in tall buildings, does not fall when withstanding wind pressure, aluminum profile material mixture is better, the price is more competitive. [ABSTRACT FROM AUTHOR]