Abstract
Operation and Operator are the key technologies in the new-generation geometrical product specification and verification (GPS). In order to solve the geometrical specification problems of product functional requirements and the ambiguity problems of product specification, this paper utilizes a new method based on dynamic description logic to describe the fundamental concepts of geometrical specification. It analyzes the geometrical features of geometrical product functional specification. By establishing the model of the operations, describing the input and output parameters in the specification and verification process, and analyzing the preconditions and results of the executions of specification operator and verification operator, the paper simplifies the operation results and overcomes the shortcomings of ambiguity and inconsistency in product specification process. Finally, it takes the specification process of perpendicularity as an example to prove the feasibility and validity of this method.
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