The process of product development consists of a series of stages to transform an idea into a new product ready for the market. Starting from the earliest stages of identification of market opportunities, till the final stages of product manufacturing, information plays a crucial role. Every stage of product development is supported by many dedicated methods and tools. On the contrary, knowledge management strategies for supporting product development have not reached the same level of development. Often users rely on the text mining tools without a proper strategy, using indeed their own intuition and knowledge of field experts. The objective of this thesis is to propose a systematic searching approach based on the functional decompositio...