Abstract
In a product design and development process, a designer faces a problem to decide functional requirement (FR) target values. That decision is made under a risk since it is conducted in the early design phase using incomplete information. Utility function can be used to reflect the decision maker attitude towards the risk in making such decision. In this research, we develop a utility-based model to determine FR target values using quadratic utility function and information from Quality Function Deployment (QFD). A pencil design is used as a numerical example using quadratic utility function for each FR. The model can be applied for balancing customer and designer interest in determining FR target values.
Highlights
In a product design and development process, a designer faces a problem to decide functional requirement (FR) target values
In this research, we develop a utility-based model to determine FR target values using quadratic utility function and information from Quality Function Deployment (QFD)
Y., Quality Function Deployment-Based Optimization and Exploration for Ambiguity, Journal of Engineering Design, 14, 2003, pp
Summary
Minimasi gap utilitas Waktu dan biaya, dan Nonlinear pelanggan dan desainer fungsi transfer biaya-nilai target. Merepresentasikan nilai produk dan model yang dikembangkan tidak digunakan untuk menentukan nilai target FR. Penentuan nilai target FR penting dilakukan karena akan menentukan nilai sebuah produk. Fungsi utilitas adalah sebuah cara untuk merepresentasikan nilai produk yang dapat mengakomodasi ketidakpastian dan risiko dalam penentuan nilai target FR. Dalam penelitian ini dikembangkan sebuah model optimisasi yang digunakan untuk menentukan nilai target FR dengan mengintegrasikan fungsi utilitas desainer dan pelanggan ke dalam satu fungsi tujuan untuk meminimasi gap di antara keduanya. Integrasi tersebut diharapkan dapat menyelesaikan masalah pengambilan keputusan tentang besaran nilai target FR, tidak hanya dari sudut pandang desainer, tetapi juga pelanggan. Model yang dikembangkan akan mempertimbangkan waktu, biaya dan kesulitan teknikal dalam perancangan produk
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