With the rapid development ofand , the user needs personalizedincreasingly, and market changed faster and faster, so design enterprises should makefull use of network-centric information technology to integrate the various businessand community resources and use all kinds of off-site distributed resources to enhancethe design capability and competitiveness of themselves. By cooperative designapproach, a new collaborative team working model can be formed based on virtualdesigning organizational network to provide an integrated and efficient workenvironment for the HVAC (Heating Ventilation and Air Condition) systemdevelopment. In this paper, collaborative design issues of HVAC systemare discussed, and the main are as follows.Firstly, a cooperative design risk framework of HVAC system isproposed, with its system implementation. Combined with the HVAC designproblems of designing companies, and issues in synchronization, coordination andmanagement in off-site product development, a cooperative design system of HVAC system is built. The model includes several aspects: project-centereddesign conflict and , virtual designing organizational system withman-focused design management, management processes including managementprograms and procedures on the basis of work flow, risk-based remote collaborativerisk, quality and cost management system. The system establishes a service-orientedarchitecture and workflow engine technology based on business application practice,to complete the coopeartive design framework of HVAC system for enterprisedeployment management and applications, to achieve optimum designresource allocation of human, finance, and materials.Secondly, risk identification and assessment model of HVAC system design is put forward. Through empirical research, conflict and risk factors may be in the HVACsystem co-design are summarized. By analyzing related data and risk sources, severalkey risk factors and risk variables in a HVAC system co-design are presented, and asix-demension risk assessment index system of HVAC system co-design is builtinsluding risk probability, harm, proiroty, testablity, controllability and inforamtionasymmetry to quantitativly evaluate risk by Analytic Hierarchy Process(AHP). As forthe inforamtion asymmetry of parties involved in HVAC system co-design, thereasons for the existed conflicts and risks can be further explored by game analysis,and comprehensive measures are proposed to ensure interestbalancing and collaboration of all parties in collaborative design process.Lastly, according to practical problems of collaborative risk management of HVACsystem, a comprehensive cooperative optimizating model considering risk, qualityand cost is proposed. A design quality evaluation system is also built including boththe traditional HVAC design quality requirements, and new quality requirements tocoordinate with environment composing of energy, materials, environmentalprotection, full life-cycle maintenance and others. Then, the game activities betweenquality and risk, and between cost and risk are discussed especially, resulting in acomprehensive optimization objective function of the whole risk management systemsolved by Genetic Algorithm (GA). The proposed model emphasizes customer-centered, constraint by reasonable quality cost, fullly analyze and design the overallrisk of HVAC system in the early stage of product development, to achieve areasonable cost business practice with higher quality and lower risk of HVAC designby multi-objective management.
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