Institute for Applied Computer Science in Mechanical

1. RPK Institute for Applied Computer Science in Mechanical Engineering (RPK) at the University of Karlsruhe (Germany) GOALS SOCIAL SCIENTIFIC To improve the understanding in and the sensibility towards the genesis of undesired product functions from principle solutions and its impact on the product itself and/or ist environment • To support the designer in the early design phases of clarification of the task and conceptual design by providing new methods and computer-supported tools • To improve product quality and concomitantly reduce the number of iteration cycles during product design COMPUTER SUPPORT OF THE DESIGN PROCESS • Product Modeling • Requirements • Functions • Principle Solutions • Process Modeling • Context Modeling THEORETICAL FOUNDATION DESIGN METHODS • DESIGN FOR QUALITY • Faults and Disturbing Factors • Fault Tree Analysis • FMEA ASSESSMENT AND EVALUATION METHODS KNOWLEDGE-BASED SYSTEMS • KNOWLEDGE • Discovery • Representation • Processing • Evaluation • Management DECISION MAKING CLASSIFICATION METHODS ONTOLOGY ABSTRACTION METHODS REQUIREMENTS ENGINEERING AND MANAGEMENT ANALYSIS TECHNIQUES Legend RESEARCH APPROACH AND METHODS Essential Usefull Requirements Elicitation from Undesired Functions • Analysis of physical effects with regard to negativ effects • Derivation of undesired product functions from such negative effects • Development of a method for the assessment of the impact of undesired functions on the product and its environment • Development of a method for the elicitation of new requirements from undesired functions with intolerably high impact on the product or on its environment • Modeling the process of elicitation of new requirements from undesired product functions • Implementation and verification of the concept HYPOTHESIS IMPACT MODEL Elicitating the requirements originating from undesired product functions during conceptual design will improve the product quality, reliability and safety and will decrease product costs. + + Number of design iterations - Product costs Product quality Market share + + Early assessment of the impact of undesired product functions on the product and/or ist environment + - + + + REQUIREMENTS ELICITATION FROM UNDESIRED PRODUCT FUNCTIONS Christine Bruch Institute for Applied Computer Science in Mechanical Engineering (RPK) University of Karlsruhe (TH) bruch@rpk.uni-karlsruhe.de http://www-rpk.mach.uni-karlsruhe.de Supervision o. Prof. em. Prof. E.h. Dr.-Ing. Dr.h.c. Hans Grabowski RESEARCH PROBLEM STATEMENT In general, not every function performed by a product is desired. In particular, some of the undesired product functions can have a damaging impact on the product itself and/or on the product environment. The earlier a design error is discovered, the less expenses its correction causes. Early capturing and processing the requirements originating from undesired product functions will improve the product quality and at the same time reduce the product development time. EXPECTED RESULTS AND CONTRIBUTION • In the area of computer supported and knowledge-based design • a better understanding of the design process, which is prerequisite for a better computer support in that area Summer School on Engineering Design Research 2003, Second Week, 24.08-30.08.2003, Baden-Baden, Germany