The QTTI-Based TOPSIS Decision Support Model to Fragrance Form Design

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.