ارايه‌ي يك سيستم فازي هوشمند براي ارزيابي و آناليز خانه‌ي كيفيت

An Intelligent Fuzzy Logic-Based System to Support HOQ Analysis

خانه‌ي كيفيت ابزاري كارآمد در كليه‌ي مراحل طراحي و توسعه‌ي يك محصول است كه وظيفه‌ي اصلي آن، ترجمه‌ي نداي مشتري به زبان قابل فهم براي تيم طراحي است تا طراحان بتوانند خواسته‌هاي مشتريان را شناسايي و نسبت به ارضا آنها اقدام ‌كنند. از آنجا كه هنوز روش منسجمي براي ارزيابي خانه‌ي كيفيت ارايه نشده، در اين نوشتار سعي شده تا سيستمي هوشمند براي ارزيابي خانه‌ي كيفيت ارايه ‌شود. اين سيستم به طراحان كمك مي‌كند تا بتوانند خواسته‌هاي واقعي مشتريان را در محصول اعمال كنند و به اين طريق رضايت‌مندي آنان را افزايش دهند. نوشتار حاضر شامل پيشينه‌يي از خانه‌ي كيفيت، مروري بر كارهاي گذشته در اين زمينه، و ارايه‌ي سيستم هوشمند مورد نظر است. همچنين نمونه‌يي موردي ارايه شده و نتايج آن مورد ارزيابي قرار گرفته است.

Global competitiveness has recently become a big challenge for many companies around the world, which are forced to seek lower costs and higher quality for what they produce. The prosperity of manufacturing firms depends on selecting and producing products which provide customer satisfaction to meet multiple objectives. If a company is able to produce customer-oriented products at a low price and in minimum time, it can be successful. So, customer need analysis should be paid attention to in product development and the design phase. Also, the technical capabilities of a manufacturing firm and the restrictions of a company should be considered. In this way, they have one big challenge: How can they respond effectively to different and easily changing customer demands? By focusing on customer opinion, Quality Function Deployment (QFD) has been developed. Quality Function Deployment (QFD) is a robust, efficient and powerful tool in the design, development and planning of products. QFD has been used in many industries and companies over the last few decades. The main function of QFD is conversion of the voice of the customer (VOC) to Technical Characteristics (TCs). However, it is not always easy to prioritize and assess TCs during the total mass of information from the different customer attitudes. This paper provides a methodology for the development of an intelligent Quality Function Deployment (IQFD) and points for developing an intelligent system based on a fuzzy inference system, in order to capture information through the House of Quality (HOQ) matrix. The paper describes the need for development of intelligent QFD to make it easier for engineers and managers to choose between TCs and improve the quality of products and systems. This paper is composed of a background of QFD, a review of related research work, and representation of an intelligent system for its analysis. Then, it applies the proposed methodology to a case study of House of Quality for the design of a new undergraduate curriculum in the mechanical engineering department of the university of Wisconsin-Madison.