quality function deployment
در نشریات گروه صنایع-
International Journal of Industrial Engineering and Productional Research, Volume:36 Issue: 2, Jun 2025, PP 130 -140
A typical definition of New Product Development is a series of actions that begins with the identification of a market opportunity and concludes with the creation, marketing, and delivery of a product. It is a knowledge-based process where constraints and needs are converted into a product description. The competition for businesses now centers on innovation and new products. Industries and investors are constantly looking for new upgrade methods and/or equipment to reduce costs and increase capability. One industry in Indonesia that has a tight competitive level is the ceramics industry with a growth rate of 10% per year. The main objective of this study was to create the design of specific machining sanitary Spare Parts production due to complexity of the design. In the proposed methodology, Quality Function Deployment is used to convert the subjective requirements from users into an objective technical response. Theory of Solving Problem Inventively is used to enhance the subpar design by reducing system conflicts and creating a balanced solution between two requirements. The implications of the integration of Quality Function Deployment and Theory of Solving Problem Inventively in this paper are a product design and concept of the specific machining for sanitary spare parts that have been adjusted to the needs of users.
Keywords: Product Design, Development, New Product Development, Theory Of Solving Problem Inventively, Quality Function Deployment, House Of Quality -
ارزیابی خدمات ارائه شده و تعیین انتظارات مشتریان می تواند در طراحی خدمات مناسب برای رضایت مشتریان و تامین نیازهای ذی نفعان مفید باشد. هدف این پژوهش، بهبود کیفیت خدمات حمل ونقل عمومی و افزایش رضایت مشتریان از طریق شناسایی نیازهای آنها و ارائه راهکار مناسب برای برآورده کردن خواسته ها است. برای این منظور، یک مدل سه مرحله ای Q F D برای ارزیابی و توسعه حمل ونقل عمومی شهر کرمانشاه استفاده شده است. در مراحل اول و دوم، با استفاده از روش B W M، اهمیت نسبی تجمعی هر استراتژی سازمان و اهمیت نسبی تجمعی هر معیار تعیین می شود. در مرحله سوم، برنامه های توسعه ای جهت بهبود حمل ونقل عمومی رتبه بندی می شوند. نتایج نشان می دهد که حوزه تسهیلات حمل ونقل عمومی بیشترین وزن را به خود اختصاص می دهد. همچنین، رتبه بندی برنامه ها نشان می دهد که سرمایه گذاری در حمل ونقل ریلی درون شهری می تواند خدمت رسانی درحمل ونقل عمومی را به شدت افزایش دهد.
کلید واژگان: توسعه عملکرد کیفیت، حمل ونقل، روش بهترین بدترین، سیستم فازیDesigning appropriate services is critical to customer satisfaction and meeting the needs of stakeholders. However, in the eld of public transport, despite its importance, this goal does not seem to have been achieved. Evaluating the services provided and determining customer expectations can be helpful in achieving this goal. Improving the quality of public transportation services and increasing customer satisfaction by identifying their needs and providing an appropriate solution to meet the needs of this study. Nowadays, performance appraisal is inevitable and all organizations evaluate performance to gain awareness of progress, identify challenges in the organization, and identify their weaknesses, and without it, performance improvement will not be possible. The key to achieving performance improvement is understand the customer needs and wants and using them in product / service design and delivery processes. Quality Performance Deployment (QFD) is a concept that seeks to capture the true voice of customers in the design and delivery of products / services. The present study intends to use QFD and multi-criteria decisionmaking process to provide a framework for better understanding of public transport system planners' customer requirements, identifying program strengths and weaknesses, and developing appropriate programs. In this research, the three-stage QFD model is used to evaluate the performance and identify the requirements of public transportation. Its stages are divided into three stages: extracting the relative importance of strategies, extracting the relative importance of criteria, and evaluating the performance of public transportation programs. In the rst and second stages, using the BWM method, the cumulative relative importance of each organization strategy and the cumulative relative importance of each criterion are determined, respectively, and in the third stage, development plans to improve public transportation are ranked. The results show that the eld of public transport facilities has the most weight. Also, the ranking of programs shows that investing in intercity rail transportation can greatly increase public transportation service.
Keywords: Transportation, quality function deployment, best-worst method, fuzzy system -
در جهان امروز سازمان ها با تکانه ها و اختلالاتی چون؛ تغییر در سطح انتظارات مشتریان، تغییرات فناوری، تحریم های بین المللی و کمبود منابع مواجه هستند که هم بر تاب آوری سازمانی و هم بر انتخاب روش های انتقال فناوری تاثیرگذار می باشند. ازاین رو این پژوهش باهدف شناسایی مهم ترین مولفه های تاب آوری سازمانی با توجه به اهمیت روش های انتقال فناوری در شرکت های طراح و سازنده یراق آلات خطوط انتقال نیرو انجام شده است. تحقیق حاضر تحقیقی کاربردی با متغیرهای کیفی با داده های توصیفی پیمایشی و از منظر زمانی مقطعی است که با کمک ابزارهای گردآوری داده ها شامل مطالعات کتابخانه ای، پرسشنامه و مصاحبه و با بهره گیری از تکنیک گسترش عملکرد کیفیت با جامعه آماری متشکل از خبرگان و متخصصان صنعت و دانشگاه که به صورت غیر تصادفی و با استفاده از روش های قضاوتی-هدفمند و شبکه ای انتخاب شدند، انجام شده است. در این پژوهش پس از شناسایی مهم ترین عوامل تاثیرگذار بر انتخاب روش انتقال فناوری، رایج ترین روش های انتقال فناوری و مولفه های تاب آوری سازمانی، روابط و میزان ارزش روش های انتقال فناوری و مولفه های تاب آوری سازمانی با استفاده از ماتریس خانه کیفیت، شناسایی و مورد تجزیه وتحلیل قرار گرفتند. طبق نتایج به دست آمده «ضرورت تملک فناوری» مهم ترین عامل تاثیرگذار در انتخاب روش انتقال فناوری، روش «مهندسی معکوس» بهینه ترین روش انتقال فناوری و «اعتماد بین بازیگران» تاثیرگذارترین مولفه تاب آوری سازمانی است.
کلید واژگان: تاب آوری، انتقال فناوری، گسترش عملکرد کیفیت، صنعت برقIn today's world, organizations are faced with impulses and disturbances such as; Changes in the level of customer expectations, technological changes, international sanctions and lack of resources are faced, which affect both organizational resilience and the choice of technology transfer methods. Therefore, this research was conducted to identify the most important components of organizational resilience with respect to the importance of technology transfer methods in companies designing and manufacturing power transmission line fittings. The method of the present research was applied, qualitative, cross-sectional and descriptive with the help of data collection tools including library studies, questionnaires and interviews and using the technique of quality performance development with a statistical community consisting of experts and industry and university experts who were selected non-randomly using judgment-targeted methods and networks were done. In this research, after identifying the most important factors influencing the choice of technology transfer method, the most common technology transfer methods and organizational resilience components, relationships and value of technology transfer methods and organizational resilience components were identified and analyzed using the quality house matrix. According to the obtained results, "the need to acquire technology" is the most important factor in choosing the method of technology transfer, "reverse engineering" method is the most optimal method of technology transfer and "trust between actors" is the most effective component of organizational resilience.
Keywords: Resilience, Technology Transfer, Quality Function Deployment, Electric Power Industry -
صنعت چوب و کاغذ یکی از صنایع با قدمت تاریخی است که از سطح بالایی در درآمدزایی و اشتغال برخوردار است. زنجیره تامین این صنعت از بهره برداری منابع طبیعی و زراعت چوب تا کارخانه های صنعتی تولید تخته های چوبی و کارگاه های تولید محصولات چوبی و کاغذی را شامل می شود. زنجیره تامین صنعت چوب و کاغذ در کشور ایران درگیر چالش هایی است که باعث کاهش بهره وری این صنعت شده است. این پژوهش با استفاده از رویکرد تلفیقی مبتنی بر تکنیک گسترش عملکرد کیفیت (QFD) و روش های تصمیم گیری چندمعیاره، به شناسایی مهم ترین مسایل زنجیره تامین صنعت چوب و کاغذ در ایران و ارایه راهکارهای بهبود مناسب می پردازد. در این راستا، با مرور ادبیات تحقیق، 45 مساله در حوزه صنعت چوب و کاغذ شناسایی و با استفاده از روش تاپسیس باتوجه به 4 معیار سطح تاثیرگذاری بر تولید، قیمت، فروش و کیفیت، رتبه بندی شدند. در این مرحله 23 مساله برای ورود به ماتریس خانه کیفیت در QFD انتخاب و برای رفع و بهبود آن ها 12 راهکار ارایه شده است. همچنین وزن نهایی مسایل و راهکارها و همبستگی بین راهکارها باتوجه به ماتریس خانه کیفیت شناسایی شدند. نتایج نشان می دهد که مهم ترین مسایل پیش روی صنعت چوب، عدم وجود آمار مناسب و دقیق از تولید، مشکلات فراوان و قوانین دست وپاگیر در فرآیند دریافت تسهیلات بانکی، عدم نظارت بخش های دولتی بر بازار چوب و پایین بودن آگاهی تولیدکنندگان از بازار چوب است. همچنین مهم ترین راهکارهای بهبود، کاشت درختان زودرس، تامین مواد اولیه جهت ساختار چوب، ایجاد شهرک ها و خوشه های صنعتی مرتبط با محصولات چوبی، تخصیص منابع دولتی بر بازار، نظارت بیشتر دستگاه های دولتی بر محصولات چوبی و ایجاد استانداردهای لازم هستند. قابل توجه است که برای اجرای راهکارها، باید به همبستگی بین راهکارها توجه نمود و تاثیر هم افزایی در اجرای راهکارها نیز درنظر گرفته شود.
کلید واژگان: زنجیره تامین، صنایع تولید چوب و کاغذ، گسترش عملکرد کیفیت (QFD)، تصمیم گیری چندمعیارهJournal of Industrial Engineering Research in Production Systems, Volume:10 Issue: 20, 2023, PP 1 -15The wood and paper industry is one of the oldest industries with a high level of income generation and employment. The supply chain of this industry includes the exploitation of natural resources and wood cultivation to industrial factories for the production of wooden boards and workshops for the production of wood and paper products. This chain in Iran is involved in challenges that have reduced the productivity of this industry. This research introduces an integrated approachbased on the Quality Function Deployment (QFD) and Multi Criteria Decision Making (MCDM) techniques to identify the most important issues in supply chain of Iran's wood and paper industries and to provide proper improvement solutions. In this way, 45 problems were identified in the field of wood and paper industry by reviewing the literature. The issues identified by the TOPSIS method were ranked according to 4 criteria of the level of influence on production, price, sales and quality. In this stage, 23 problems were selected to enter the House of Quality (HoQ) matrix, and 12 solutions were presented to solve and improve them. The final weight of problems and solutions and the correlation between solutions were identified according to the HoQ matrix. The results show that the most important issues facing the wood industry are the lack of proper and accurate production statistics, many problems and cumbersome rules in the process of receiving bank facilities, the lack of supervision by government departments on the wood market, and the low awareness of producers about the wood market. Also, the most important solutions for improvement are planting early trees, providing raw materials for wood structure, creating settlements and industrial clusters related to wood products, allocating government resources to the market, monitoring more government agencies on wood products, and creating the necessary standards on the market. It is noteworthy that for the implementation of the solutions, attention must be paid to the correlation between the solutions so that the effect of synergy is created in the implementation of the solutions.
Keywords: Supply Chain, Wood, Paper Manufacturing, Industries, Quality Function Deployment, (QFD), Multi-Criteria Decision Making -
Status of quality improvement initiatives in manufacturing industry of madhya pradesh state in IndiaThe objectives of this work are to investigate the status of implementation of quality initiatives by manufacturing firms in Madhya Pradesh, India, and to compare large and small-medium scale industries. Very few researchers have attempted to compare large scale and small-medium scale firms in order to know the extent of implementation of quality initiatives for a state like Madhya Pradesh. In this study, the survey questionnaire method was used for the collection of data. Nine quality initiatives were selected for the study. The obtained data are grouped into two groups: 1) large scale firms, and 2) small-medium scale firms. Descriptive and inferential statistics are used for analysis and the results are presented. Hypothesis testing was used to investigate for any significant difference between the two groups of firms in implementing each quality initiative. Results from inferential statistics reveal that there is a significant difference in the implementation of quality initiatives in large and small-medium scale industries. The findings of the present work will guide firms to identify areas where improvement is required at each quality initiative level. The study will help small-medium scale firms in the Madhya Pradesh state of India to conduct training programs in the areas of relevant quality initiatives for improving their quality of products.Keywords: Small, medium, large-scale firms, quality initiatives, Quality Assurance, TQM, Kaizen, Quality Function Deployment, Manufacturing Industry
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Improvement of the student-teacher learning interface with selecting and designing a teaching methodInternational Journal of Research in Industrial Engineering, Volume:9 Issue: 3, Summer 2020, PP 247 -259This Research work explores the effective teaching method using a single case study design and produces a plenty of information about students requirements, teachers recommendations and some teaching methods and learning styles .The resulting analysis provides a complete teaching method that may develop teacher student learning interface as well as may satisfy both student’s requirements and the recommendations of teacher. The analysis also specifies the component essential to develop the relationship between teacher and students as well as the learning environment. In this analysis at first some literature review is done to know the aspects of teaching and learning methods and also different types of teaching and learning methods. From this it is easy to understand what should be the focus of learning and the strategy that can help students to empower themselves with their own thinking power .Then the survey is done among 250 students of Rajshahi University of Engineering and Technology to know the students requirements and teachers recommendation is also brought from the discussion with the teachers of this institute. After that according to the students requirements and teachers recommendation the candidates of teaching method is selected. And finally the Fuzzy Topsis Set Theory is applied to find out the effective teaching method which satisfies the student requirements. The characteristics and advantages are also mentioned which are able to alleviate the gaps that exist in the previous teaching methods.Keywords: Teaching method, Learning style, Quality function deployment, Fuzzy TOPSIS
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International Journal of Research in Industrial Engineering, Volume:9 Issue: 1, Winter 2020, PP 65 -76
Selecting the right lean tool is one of the most challenging tasks for decision-makers. This research represents an integration of two methods, Quality Function Deployment (QFD) and TOPSIS, to evaluate and prioritize the lean tools. The aim of this research is to propose an integrated QFD-TOPSIS method for finding and ranking the major wastes on a production floor and also prioritize lean tools for eliminating them. The proposed model consists of House Of Quality (HOQ) to identify major waste signs which transform them into seven wastes. A set of relative weights of the wastes were then determined which were input in the TOPSIS method to prioritize suitable lean tools.
Keywords: Quality Function Deployment, TOPSIS, HOQ, Lean Tools, Waste -
The purpose of this research is to make the right design in improving the service of selling formaldehyde products in the Chemical Industry according to customer requirements by implementing Quality Function Deployment. Complying on customer satisfaction is important in the competitive global market, which can be realized by innovation and quality fulfillment. Innovation and quality are not only about fulfilling product specifications, but also whether the product is marketable. Furthermore, as the show of average sales formaldehyde product in the last 3 years is 71.6% of a target whereas the formaldehyde market share is very large. It is important to develop sales services of products to meet customer needs. Quality Function Deployment (QFD) is a tool that can translate the customer needs to obtain a technical response in complying with the customer’s satisfaction. Method of this research uses customer satisfaction survey form, the data was collected through a field survey with questionnaires. The market survey generates 9 critical points of the services in selling products. House of quality (HOQ) was developed and analyzed to describe the relationship between customer expectations and technical responses. The overall analysis suggests three priorities of technical responses of a design concept to take into account in the service development. Priority as an action plan is additional hunting line for customer - Marketing and Sales (23%), provide schedule regular meeting with customer - include related department (15%), and shipment schedule to increase On-Time Delivery (OTD) from 80% to 95% through collaborating with external transportation company (14%). Finally, Quality Function Deployment (QFD) is implementing for increasing sales formaldehyde products through customer satisfaction.
Keywords: Quality Function Deployment, Formaldehyde, Customer Satisfaction -
در بین همه ی صنایع خدماتی، صنعت گردشگری به علت ایفای نقش اساسی در اقتصاد ملی، یکی از حساس ترین صنایع نسبت به موضوع کیفیت است. در این راستا، استفاده از روش هایی مانند خانه ی کیفیت (H O Q) می تواند گام مهمی برای دست یابی به سطح مطلوبی از کیفیت خدمات و رضایت مشتریان باشد. در این نوشتار، ابتدا 31 مورد از خواسته های مشتریان از خدمات هتل پردیس رشت شناسایی شده و به تعیین درجه ی اهمیت و تحلیل سروکوال و کانو با توزیع پرسش نامه های مربوط بین 390 مشتری پرداخته شده است. سپس با تشکیل خانه ی کیفیت، فعالیت ها و اقدامات اصلاحی لازم برای تامین خواسته ها شناسایی و وزن دهی شده است. علاوه بر این، از نظریه ی اعداد فازی مثلثی در سراسر روش تحقیق بهره گرفته می شود. نتایج به دست آمده از این تحقیق اهمیت، نوع و اختلاف هر خواسته با سطح ایده آل و اولویت بندی اقدامات اجرایی برای برآورده کردن خواسته های مشتریان را تعیین می کند.
کلید واژگان: صنعت خدمات، صنعت هتل داری، گسترش عملکردی کیفیت، کانو، سروکوالThe world economy is increasingly characterized as a service economy. This is primarily due to the increasing importance and share of the service sector in the economies of most developed and developing countries. In fact, the growth of the service sector has long been considered as an indicator of a country's economic progress. The hospitality industry is a broad category of elds within the service industry that due to its fundamental in uence on national economy is one of the most sensitive elds to the matter of quality. Therefore, application of methods such as House Of Quality (HOQ) can be a big step forward in maximizing the customer satisfaction. Initially we investigated 31 essential customers' expectations from services of Rasht Pardis Hotel and then we prioritized these needs and carried out the Servqual and Kano analysis by sending out corresponding questionnaires to 390 customers. Afterwards, by means of house of quality, the proper acts and corrective actions to meet customers' needs is determined and prioritized. All this survey is done under rectangular fuzzy environment. The results acquired from this research can determine the priority of needs and correction actions, classify customer preferences to meet the customers' expectation at the highest possible. Results demonstrate that most important demands are respectively secure rooms, tidy and clean beds and blankets and well-designed Cafas and restaurants. Furthermore, entertainment facility for kids and 24*7 exchange centers and medical services have respectively the biggest gap to the desired conditions. Kano analysis show that 31 customers' expectations, 4 are must-be, 22 are attractive and the other 4 are one-dimensional qualities. Also, Activities Hiring well trained sta , hiring skilled technicians, Mechanization of dishwashing, cloths washing and etc., Codi cation of health and sanitary principles to insure quality and Creating website for online services such as reservation are the activities that have the highest importance level.
Keywords: Service industry, hotel industry, quality function deployment, kano, servqual -
Journal of Optimization in Industrial Engineering, Volume:12 Issue: 25, Winter and Spring 2019, PP 31 -40With daily development of information technology supply chain of service-based organizations like financial institutions and the increased value of outsourced activities, also the importance of customer satisfaction, outsourced affairs must have done by the suppliers who have the ability of accomplishing the organizational demands. To mitigate the risk of invalid supplier selections, verification and selection of the suppliers should be performed with an optimized and systematic solution. In order to help the selection of suppliers in the IT department of financial organizations, a different model by using a hybrid QFD-TOPSIS solution in MCDM methods is suggested, in this study. First goal of the provided model is finding the most related criteria and the second one is offering an optimized solution to the supplier selection problem. To begin the QFD part in the mentioned method, two categories of criteria are needed. Then, after the formation of the House of Quality, in a real case study that was performed in a private bank in Iran, the suppliers are ranked by using the proposed method. The greatest efficiencies of this method are not only finding the best supplier by measuring the nearest distance to the ideal and the farthest one to the negative-ideal solution but also closing the opinions of employers to the technical requirements (sub-criteria) of information technology supplier qualifications. Finally, a model reliability part is designed to indicate the validation of the proposed method and a sensitivity analysis is implemented to find the most sensitive sub-criteria. That is the results of ranking alter if sensitive sub-criteria change .Keywords: Supply Selection, Multiple Criteria Decision Making, information technology, Quality function deployment, TOPSIS
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International Journal of Research in Industrial Engineering, Volume:6 Issue: 1, Winter 2017, PP 17 -38In the competitive economy of today, those companies are to succeed that can design efficiently and produce productions that would be preferred by its customers over those of their competitors and Those companies which desire to find for their performance a position in world-class should have the capability to quickly, efficiently and effectively respond to changes in global markets. So plans must be come up with which may satisfy customers’ needs and lead to highquality products that can compete with other companies. This paper aims at developing the way we can use QFD(quality function deployment) and VA(value analysis) tools both theoretically and in case study. Out of Iranian cars, Pride was chosen because of quality drawbacks it suffers from and then the combining process of QFDVA was applied to its bodywork. Finally, the research hypothesis was analyzed by developing and distributing a questionnaire. SPSS software was used for analyzing the data. Combining QFD and VA in product design obviated one of the executive problems in QFD, i.e., inability of the latter in recognizing all customer needs. The optimal value of the features of product design can be assessed by using the above-mentioned tools. Assessment of these features provides for allocating resources optimally to the recognized functions. One other finding of the research is that using QFDVA in new product design (NPD) improves the competitive status of the company in relation to its competitors in global market through improving designing and, consequently, decreasing the cost, increasing the quality and boosting sales. This paper provides some information for car industry and has some implications for defeating the competitors in the competition ridden market of today.Keywords: Quality Function Deployment, Value Analysis, Combined QFDVA, World-Class
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خانه ی کیفیت ابزاری کارآمد در کلیه ی مراحل طراحی و توسعه ی یک محصولاست که وظیفه ی اصلی آن، ترجمه ی ندای مشتری به زبان قابل فهم برای تیم طراحی است تا طراحان بتوانند خواسته های مشتریان را شناسایی و نسبت به ارضاء آنها اقدام کنند. از آنجا که هنوز روش منسجمی برای ارزیابی خانه ی کیفیت ارائه نشده، در این نوشتار سعی شده تا سیستمی هوشمند برای ارزیابی خانه ی کیفیت ارائه شود. این سیستم به طراحان کمک می کند تا بتوانند خواسته های واقعی مشتریان را در محصول اعمال کنند و به این طریق رضایت مندی آنان را افزایش دهند. نوشتار حاضر شامل پیشینه یی از خانه ی کیفیت، مروری بر کارهای گذشته در این زمینه، و ارائه ی سیستم هوشمند مورد نظر است. همچنین نمونه یی موردی ارائه شده و نتایج آن مورد ارزیابی قرار گرفته است.کلید واژگان: خانه ی کیفیت، سیستم هوشمند، ندای مشتری، سیستم استنتاج فازی، تیم طراحیGlobal 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 ofan 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.Keywords: Quality function deployment, house of quality, expert system, fuzzy inference system, technical characteristics
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International Journal of Industrial Engineering and Productional Research, Volume:26 Issue: 2, Jun 2015, PP 147 -162Nowadays supply chain management has become one of the powerful business concepts for organizations to gain a competitive advantage in global market. This is the reason that now competition between the firms has been replaced by competitiveness among the supply chains. Moreover, the popular literature dealing with supply chain is replete with discussions of leanness and agility. Agile manufacturing is adopted where demand is volatile while lean manufacturing is used in stable demands. However, in some situations it is advisable to utilize a different paradigm, called leagility, to enable a total supply chain strategy. Although, various generic hybrids have been defined to clarify means of satisfying the conflicting requirements of low cost and fast response, little research is available to provide approaches to enhance supply chain leagility. By linking Leagile Attributes and Leagile Enablers (LAs and LEs), this paper, based upon Quality Function Deployment (QFD), strives to identify viable LEs to achieve a defined set of LAs. Due to its wide applicability, AHP is deployed to prioritize LAs. Also, fuzzy logic is used to deal with linguistics judgments expressing relationships and correlations required in QFD. To illustrate the usefulness and ease of application of the approach, the approach was exemplified with the help of a case study in chemical industry.Keywords: Supply chain management, Leagility, Analytic Hierarchy Process, Fuzzy logic, Quality Function Deployment
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امروزه برای تبدیل خواسته های مشتریان به مشخصه های فنی محصول از رویکرد گسترش عملکرد کیفیت یا گسترش کارایی کیفی (Q F D) به طور وسیعی استفاده می شود. در این رویکرد رتبه بندی و وزن دهی صحیح هریک از خواسته های مشتریان حائز اهمیت است، چرا که این امر بر ارزش نهایی مشخصه های فنی محصول تاثیر خواهد گذاشت. هر فرد تصمیم گیرنده درک متفاوتی از ارزیابی متغیرهای زبانی در محیط فازی دارد، هدف از این تحقیق روش جدید وزن دهی به خواسته های مشتریان و مشخصه های فنی براساس اطلاعات رقبا و ارائه ی روش سیستماتیک Q F D فازی است. موفقیت یک محصول نه تنها به مطابقت با نیازهای شتریان، بلکه به مقایسه و ارزیابی محصولات رقبا نیز بستگی دارد. اکثر روش های پیشین تنها بر دیدگاه مشتری متمرکز بوده و از محیط رقابتی چشم پوشی کرده اند. روش پیشنهادی شامل موقعیت رقبا، وزن دهی متفاوت مشتریان گوناگون، عملکرد فعلی و نظر مشتریان به درک های متفاوت از متغیرهای زبانی،درنظر گرفتن سقف خانه ی کیفیت فازی، به علاوه استفاده از ریاضیات فازی به جای اعداد قطعی در مقایسه با روش های قبل است. این روش می تواند بهترین استراتژی طراحی محصول را در اختیار سازمان قرار دهد.
کلید واژگان: گسترش عملکرد کیفیت، خانه کیفیت فازی، ندای مشتری، محیط رقابتی، قاعده ی پارتو، آنتروپیIn a competitive environment, quality and price have an important role to play in the production of commodities. For this purpose, increasing the quality at a reasonable price is the first and most important issue for achieving a share in the market. Quality Function Deployment (QFD) has been one of the most successful tools for this purpose, for some years. Using QFD, we design and produce the finished goods or services which satisfy the needs of the customers. In fact, QFD transforms the needs of the customer to the technical characteristics of the product. However, usually, customer needs are presented in the form of subjective and verbal statements, which causes a reduction in the effectiveness of the questioners who are determining customer needs. The fuzzy approach has solved this problem. During the construction of QFD, using fuzzy numbers instead of crisp numbers, better results will be obtained. Fuzzy logic shows a range for each customer idea. Comparing the crisp with the fuzzy numbers, crisp numbers only identify one point in a wide range of possibilities. These issues are more highlighted when customer beliefs regarding one issue may be quite different from another.In this paper, all these possibilities are considered when the fuzzy environment for projecting the view of the customers is considered. First, the fuzzy environment and the house of quality are introduced. Then, a complete example, concerning the house of quality matrix as the most important factor in QFD, is presented.After determination of the technical characteristics of the product, the most important, determined by Pareto's law, are transmitted to the next step, which is the designing of the product. With emphasis on these important characteristics, by using fuzzy numbers for projecting the view of customer needs and by improving the design of the product based on them, we can be sure that customer satisfaction will be improved.Keywords: Quality function deployment, Fuzzy house of quality, Customer, Competition, Pareto's law -
The Quality Function Deployment method (QFD) is one of the most effective tools of designing and improving quality being used in order to supply customers requirements and enhancing his/her satisfaction. The main purpose of this research is to prioritize the identifiers of improving servicequality of dental clinic using QFD approach and combined ANP and DEMATEL with fuzzy approach. Initially in this research, patients demands were determined. Before ranking, the patients demands were classified based on dimensions of SERVQUAL model, then they were ranked by the combined ANP and DEMATEL with fuzzy approach. Then, technical requirements were determined by nominal group technique. At last, the matrix of house of quality (HOQ) was completed that the most significant technical requirements include holding training courses, purchasing modern equipment, and recruiting skilled and committed personnel.Keywords: Quality function deployment, Analytic network process, DEMATEL, Technical requirements, Customer requirements
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امروزه، رقابت جهانی به دلیل تغییرات سریع تکنولوژیکی و ازدیاد و تنوع محصولات افزایش سریعی پیدا کرده است. این امر باعث تاکید بر نقش بهبود مستمر عملکرد به عنوان یک نیاز رقابتی و راهبردی در بسیاری از سازمان ها در سراسر دنیا شده است. گسترش مشخصه کیفیت به عنوان ابزاری قدرت مند برای بهبود کیفیت و طراحی محصول و ایجاد یک سیستم کیفیت مشتری مدار محسوب می شود. در این پژوهش، یک چارچوب ترکیبی از گسترش مشخصه های کیفیت و برنامه ریزی آرمانی برای نشان دادن سطح برآورد هریک از نیازهای فنی محصول ارائه شده است. در این چارچوب برای به هنجار کردن خانه ی کیفیت از رابطه ی واسرمن استفاده شده است. با توجه به این که رویه ارائه شده، قادر به در نظر گرفتن ماهیت چندمنظوره ی مسئله است، اهدافی همچون افزایش سطح رضایت مشتری، کاهش هزینه و کاهش سختی کار لحاظ شده است. این چارچوب در نهایت در شرکت سیمان لارستان به کار گرفته شده است.
کلید واژگان: گسترش مشخصه های کیفیت، خانه ی کیفیت، اعداد فازی مثلثی، برنامه ریزی آرمانیToday, universal competition has greatly increased, due to the rapid change in technical progress and the variety of production. This makes the role of Performance improvemen as a computational and strategic requirement in many organization worldwide. The function of production is in the area of engineering characteristics, and, for this design, correct understanding of customer requirements and recognition of design requirements are important. Quality function deployment is a strong instrument for improving the quality and design of a product and for making a system customer oriented. In this research, we have combined a frame of QFD and GP for showing the fulfillment level of DR(s). Waserman's has been used in the frame for normalizing houses of quality. This framework can include multi goals, like increasing customer satisfaction, and decreasing costs and technical difficulty. Suppose that customer satisfaction and cost expenditure are considered more important than technical difficulty (two such priority levels are recommended in the QFD process). Based on the three fuzzy goals and their preemptive priority structure, the overall model can be formulated. Determining goal values precisely is difficult for the design team. Since customer satisfaction, cost, and technical difficulty are not easy to measure exactly, these goals usually conflict with each other. For dealing with this, the design team first determines aspiration levels for each goal, and then finds a set of solutions to achieve the maximum satisfaction degree of all goals in total. The important variable in this model is $x_{j}. x_{j}$ is the fulfillment level of engineering design requirement, j =1,2,... n. if $x_{j}$ = 100%, it denotes complete fulfillment of the objective targets for the jth DR. For solving this problem, the model transforms with fuzzy coefficients to a family of conventional crisp mathematical programming models by applying the $alpha-cut$ approach and Zadeh's extension principle. Obviously, if a designer requires more information to decide the fulfillment level of DRs, more $alpha-cut$ are needed. Different $alpha$ values lead to different ranges of degree satisfaction of the goals and also those of the fulfillment levels of DRs. The membership function for fuzzy goals and fuzzy fulfillment levels are constructed by piecewise linear segments based on different $alpha$ values Finally, this research has been used in the Cement Company of Larestan, Iran, producing Portland II cement.Keywords: Quality function deployment, house of quality, fuzzy number, fuzzy goal programming -
در این مقاله، انتخاب بهترین تامین کنندگان به وسیله معیارهای کیفی و کمی و تخصیص اندازه سفارش به آنها جهت تامین و توزیع محصول در چند دوره زمانی، مدنظر است. به منظور برآورده شدن هدف تحقیق، یک مدل تصمیم گیری چندمعیاره برای انتخاب تامین کنندگان بر پایه روش گسترش کارکرد کیفیت (QFD)4 و فرآیند تحلیل سلسله مراتبی (AHP)5 و برنامه ریزی ریاضی ارائه می شود. مدل ارائه شده، از دو فاز کیفی و کمی تشکیل شده است. به طور کلی در فاز کیفی، تامین کننده های بالقوه براساس معیارهای کیفی ارزیابی می شوند و حاصل این ارزیابی، تعیین ارجحیت خرید از هر تامین کننده است و این ارجحیت ها در بخش کمی مسئله در تابع ارزش خرید کل به کار می روند. هدف اصلی این تلفیق کاهش هزینه تا حدی است که بتوان ادعا کرد رضایت مندی خریدار از خرید حاصل شده است.
کلید واژگان: انتخاب تامین کننده، گسترش کارکرد کیفیت، فرآیند تحلیل سلسلسه مراتبی، تخفیف، اندازه سفارش، برنامه ریزی ریاضی آرمانیIn this research we approach to select most appropriate suppliers utilizing qualitative and quantitative factors and order them lot size of product to supply and distribute them in several period of time. to meet the objective of this research, a supplier selection multi-criteria decision making model is developed using QFD, AHP and mathematical programming methods. this proposed model consist of two phases: qualitative and quantitative. in qualitative phase, the potential suppliers are evaluated by means of qualitative criterion and the result is the numerical weight of each supplier. These normalized weights are deployed in purchase value function in quantitative phase. The ultimate goal of this research is not reducing the cost alone, but to reduce the cost to the level that customer satisfaction is provided.Keywords: Supplier Selection, Quality Function Deployment, Analytic Hierarchy Process, Discount, Lot sizing, Goal programming -
موفقیت شرکت های تولیدی و خدماتی مستلزم «تعریف دقیق چشم انداز و اهداف»، «تدوین صحیح استراتژی ها»، «تدوین صحیح برنامه های عملیاتی پروژه ها و اولویت بندی آنها»، «اجرای درست برنامه ها» و «ارزیابی درست و عادلانه عملکرد و تحلیل انحرافات» و انجام اصلاحات هوشمندانه در فرآیند پنج گانه فوق می باشد. امروزه چالش اصلی مدیران ارشد سازمان ها، تدوین درست استراتژی ها و پیاده سازی صحیح آن می باشد. تجربه نشان داده است که بسیاری از استراتژی های درست تدوین شده، در مرحله عمل با شکست مواجه می شوند و از دلایل آن عدم انتقال درست استراتژی در سرتاسر سازمان و نیز محدودیت بودجه و زمان و تخصیص ناکارای منابع به انجام پروژه ها و اقداماتی است که بعضا از اولویت استراتژیک و اهمیت بالایی در جهت دستیابی به اهداف، برخوردار نیستند، اما قسمت اعظم منابع بهبود را به خود اختصاص می دهند. این مقاله، چارچوبی مبتنی SWOT1، BSC2، QFD3 و EFQM4 وStrategy Map را برای حل مشکل فوق، تشریح می کند. این چارچوب برای فرموله کردن استراتژی و پیاده سازی آن در شرکت پست جمهوری اسلامی ایران بکارگرفته شده استکلید واژگان: کارت امتیازی متوازن، مدل تعالی کیفیت اروپایی، گسترش فعالیت های کیفی، تحلیل SWOT، مدیریت استراتژیک، نقشه استراتژیInternational Journal of Industrial Engineering & Production Management, Volume:22 Issue: 1, 2011, P 78Success of manufacturing and service companies requires specific vision and mission statement, c orrect formulation of strategies and objectives, prioritization and execution of operational projects, evaluation and fair analysis of performance, and proper modification in the above five processes. One of the biggest challenges of executive managers today is the right formulation and deployment of strategies. Experience indicates that in most cases, strategies have been correctly formulated but poor execution in practice has led to failure. One of the major reasons for poor execution of projects is implementation of strategies which have low prioritization and consume a major part of resources. This paper based on SWOT, BSC, QFD, and EFQM presents an integrated framework for alleviating the above problem. This framework is used to formulate and implement strategies at the Islamic Republic of Iran postal company.Keywords: Balanced Scorecard, European foundation for quality management, Quality function deployment, SWOT analysis, Strategic management
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