【正文】 American, Japanese, European, International) were set up to explore research relating to QFD techniques. ? The QFD institute was formed in 1994. Nov 23, 2020 SENG 613 QFD 9 QFD in Software Engineering ? The QFD Research Group was seeking research relating to QFD in Software Engineering since 1987. ? A new style of QFD, Software QFD (SQFD), has emerged. ? DEC, ATamp。T, HP, IBM and Texas Instruments have all published information relating to SQFD (Haag, 1996). Nov 23, 2020 SENG 613 QFD 10 Additional Techniques ? There are many techniques which are a style of QFD or are used to enhance QFD. ? These include: TRIZ, conjoint analysis, the seven product planning tools, Taguchi methods, Kano model, SQFD, DQFD, Gemba, Kaizen, Comprehensive QFD, QFD (N), QFD (B). Nov 23, 2020 SENG 613 QFD 11 Overview of QFD ? The History of QFD. ? What is QFD? ? Why use QFD? ? Characteristics of QFD? Nov 23, 2020 SENG 613 QFD 12 What is QFD? ? Quality Function Deployment, QFD, is a quality technique which evaluates the ideas of key stakeholders to produce a product which better addresses the customers needs. ? Customer requirements are gathered into a visual document which is evaluated and remodeled during construction so the important requirements stand out as the end result. Nov 23, 2020 SENG 613 QFD 13 The QFD Paradigm ? QFD provides the opportunity to make sure you have a good product before you try to design and implement it. ? It is about planning and problem prevention, not problem solving (Eureka, 1988). ? QFD provides a systematic approach to identify which requirements are a priority for whom, when to implement them, and why. Nov 23, 2020 SENG 613 QFD 14 HighLevel QFD ? Requirements are initially elicited using other RE techniques (interviewing, brainstorming, focusgroups, etc). ? QFD involves the refinement of requirements using matrices and charts based on group decided priorities. ? There are 4 Phases of QFD. Each Phase requires internal iteration before proceeding to the next. Once at a Phase you do not go back. Nov 23, 2020 SENG 613 QFD 15 What Does QFD Require? ? QFD requires time, effort, and patience. ? QFD requires access to stakeholder groups. ? The benefits of QFD are not realized immediately. Usually not until later in the project or the next project. ? QFD requires full management support. Priorities for the QFD process cannot change if benefits are to be realized. Nov 23, 2020 SENG 613 QFD 16 The QFD Evolution ? Basic QFD is rarely used in it?s original form. ? Usually a type of QFD is utilized, like SQFD or DQFD, or additional techniques are added, like Taguchi methods or TRIZ, or only parts of the original phases are used, like eliminating the What?s Correlation Matrix from Phase 1. ? Each QFD project will vary. Nov 23, 2020 SENG 613 QFD 17 Overview of QFD ? The History of QFD. ? What is QFD? ? Why use QFD? ? Characteristics of QFD? Nov 23, 2020 SENG 613 QFD 18 Why use QFD? ? The QFD process leads participants to a mon understanding of project direction and goals. ? QFD forces anizations to interact across their functional boundaries (Hales, 1995). ? QFD reduces design changes (Mazur, 2020). Nov 23, 2020 SENG 613 QFD 19 Nov 23, 2020 SENG 613 QFD 20 QFD Artifacts ? Prioritized list of customers and petitors. ? Prioritized list of customer requirements. ? Prioritized list of how to satisfy the requirements. ? A list of design tradeoffs and an indication of how to promise and weigh them. ? A realistic set of target values to ensure satisfaction. Nov 23, 2020 SENG 613 QFD 21 What about Cost? ? Cost reduction is not mentioned as a ?Why to use QFD?. ? Initial costs will be as high or a little higher pared with traditional techniques. ? You are seeking long term savings in that product or the products that follow. Nov 23, 2020 SENG 613 QFD 22 Overview of QFD ? The History of QFD. ? What is QFD? ? Why use QFD? ? Characteristics of QFD? Nov 23, 2020 SENG 613 QFD 23 Characteristics of QFD ? 4 Main Phases to QFD ? Product Planning including the ?House of Quality? (Requirements Engineering Life Cycle) ? Product Design (Design Life Cycle) ? Process Planning (Implementation Life Cycle) ? Process Control (Testing Life Cycle) Nov 23, 2020 SENG 613 QFD 24 QFD Phase 1 ? Phase 1 is where most of the information is gathered. ? Getting good data is critical. Any mistakes in requirements here will be magnified later. ? As Software Engineers, we would spend most of our time in this Phase. Nov 23, 2020 SENG 613 QFD 25 The House of Quality (HoQ) ? Is a set of matrices which contains the requirements (What?s) and the detailed information to achieve those requirements (How?s, How Much?s). ? Stakeholder groups fill in the matrices based on their priorities and goals. ? A key to the HoQ is making sure each group answers the same question about the same relationship, What vs How, cell. Nov 23, 2020 SENG 613 QFD 26 Key Items to Address in HoQ ? QFD Team Mission Statement. ? Who is the cus