Conceptual designs are the output of the design process with high concentrationof engineering creativity. It therefore follows that they consitute the highest `value added' component in the design process, which transforms a set of abstract requirements into the definition of a physically realisable product. Detailed designs on the other hand describe the product's geometry, material, surface finish and other details necessary for the making of the product. There are very clearly defined rules and practices stipulated by standards [1] to produce manufacturing drawings, which essentially describe the detailed designs. However for conceptual design there is no defined and well-accepted representation methos. In this paper, the existing methods for storing conceptual designs are analysed and a new chart-based method to store conceptual designs is described.
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