Product design and development involves lots of steps. Tools have been developed to help with each step and no book covers as many of these tools in the depth than is book does. This book goes into marketing, specifications, bench marking, concept generation/selection, product architecture, design, manufacturing and legal issues to name a few. This book is full of data and examples from industry to explain the concepts and tools presented in this book.
No matter how great the idea is, the process used to take the idea and make it into a reality (development process) is a huge factor on whether the idea becomes a reality and the ultimate success of the product. No book goes into the development process better than this book. This book covers risk management, budgeting, resource planning, design rules, timelines, product specification, product architecture, empowering people, decision making, etc.
product design and development karl t ulrich and steven d eppinger
After determining a path and direction for the team, a product design and development methodology was employed as proposed by Ulrich and Eppinger [2]. The methodology involves a structured step-by-step method for creating a product based directly on needs expressed by the customer. The needs are interpreted based on interviews conducted directly with the customer(s). Once these needs have been interpreted and ranked, a Quality Function Deployment is performed which leads to generation of actual design concepts, engineering requirements, and technical specifications. Finally, a prototype is constructed to meet these specifications and needs. The primary customers were determined to be students with disabilities and those who teach them and supervise their development. The team interviewed ten individuals including teachers, parents, physical therapists, people with disabilities. On-site observations of the current process in operation were also conducted. The interviews and observations provided the insight necessary to determine that the six most important needs were that the device should be safe, reliable, durable, easy to load, keep students interested, and not jam. In addition, two other issues were that the device be manufacturable by the staff at Rosedale, and cost less than $100 to build. In order to achieve a design that focuses on the involvement and response of the students, it was necessary to analyze the needs and relate them to student involvement in the process. The device needs to be reliable so each can that is input into the device experiences a reduction in volume and exits the system in a repeatable and anticipated manner. Reliability directly relates to the ability of the design to maintain the interest of the students. Ease of loading is important to allow students with all levels of ability to use the device. Therefore, an entry point for the device that allows a margin of error would be beneficial. Lastly, one of the more important needs determined was that the device crush cans without jamming. The current machine jams approximately 20% of the time. The intent of the future design was to reduce, and possibly eliminate, any jamming that might occur. Although the needs addressed above were important, manufacturability and cost issues were imperative to the success of the design. The capability at Rosedale is limited by the tools and staff available. The school has a small woodworking shop consisting of two staff members who build products out of wood and plastic in addition to performing simple electrical assembly. This imposed a large constraint on the design. After determining the customer needs, the target specifications for the system were developed. These specifications were necessary in determining the guidelines for the design. These guidelines quantified aspects such as safety, forces, materials, and ergonomics. Given these specifications, solutions were developed for each function of the device. These solutions were rated against each other to determine how well each one satisfied the customer needs and combined to form the overall solution. Next, specific solution principles were generated to find ways to achieve the generalized solutions. Once this was accomplished, the solution principles were scored against each other with respect to the needs. The results were summed and the concepts with the highest scores were chosen.
This paper provides a comprehensive insight into current trends and developments in Concurrent Engineering for integrated development of products and processes with the goal of completing the entire cycle in a shorter time, at lower overall cost and with fewer engineering design changes after product release. The evolution and definition of Concurrent Engineering are addressed first, followed by a concise review of the following elements of the concurrent engineering approach to product development: Concept Development: The Front-End Process, identifying Customer Needs and Quality Function Deployment, Establishing Product Specifications, Concept Selection, Product Architecture, Design for Manufacturing, Effective Rapid Prototyping, and The Economics of Product Development. An outline of a computer-based tutorial developed by the authors and other graduate students funded by NASA ( accessible via the world-wide-web ). is provided in this paper. A brief discussion of teamwork for successful concurrent engineering is included, t'ase histories of concurrent engineering implementation at North American and European companies are outlined with references to textbooks authored by Professor Menon and other writers. A comprehensive bibliography on concurrent engineering is included in the paper. 2ff7e9595c
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