Tham khảo tài liệu 'mechatronics for safety, security and dependability in a new era - arai and arai part 5', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 104 Many studies for conceptual design were performed that focused on modeling and it s intention in the conceptual design stage 2 3 4 5 6 . The research for synthesis of each functional design was discussed in 7 and researches of treatment of qualitative information are discussed in 8 9 . Our objective is to propose an architecture to accurately transmit the design information and intention from the upstream to the detailed design stage. For this purpose we propose the principal architecture by introducing an integrated model with geometrical and intentional information in 10 ll . In this paper we discuss about important design information at the upstream design stage. This information is important for design requirements but is not detailed yet. Moreover expression of this design information by the proposed architecture is discussed. In particular the space where an object does not exist spatial representation and an application of this architecture including the behavior of the system is discussed. As a result accurately transmitting the design information and the intention considered at the upstream to detailed design stage becomes possible. 2. SUBSTANCE To achieve our objective it is necessary to be able to handle the design information and intention as well as transmit this information to the downstream design phase accurately. In many designs in the beginning the outline of the entire product is decided and the design process gradually becomes more detailed. First we explain the outline and features of a principal architecture. Secondary important design information and intention at the upstream design stage is considered. Especially at the design upstream stage the expression of shape arrangement and functionality are vague. However this information is a principal requirement for the product and the most important information for designing a final product. 3. POINTS OF PRINCIPAL ARCHITECTURE The points of principal architecture are concisely described. - An
