Abstract
To comprehend consumers' feelings and satisfy their needs is vital for the successful commercial products. As such, product designers work hard to best meet consumers' specific requirements and expectations. In this study, we conduct an experimental study on fragrances due to its various shapes and appearances. A new consumer-oriented approach proposed consists of two main methods, i.e. the quantification theory type I (QTTI) and the technique for order preference by similarity to ideal solution (TOPSIS). The QTTI-based TOPSIS model is used to build a design decision support database. It can help product designers obtain the optimal design alternatives that best match consumers' expectations. This new consumer-oriented approach provides an effective mechanism for facilitating the new product design process and development.
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