Research On Some Key Issues Of Architectural Collaborative Design Process Management

It has many cross-business, cross-organizations, cross-professional andcross-regional data interaction in collaborative design workflow management systems.Comparing with other workflow management systems, the collaborative designworkflow management systems have more complex business processes and highersecurity requirements. Therefore, it is very necessary to design a more advancedsolution to improve management efficiency. This article discusses several key issuesof complex process management in engineering design under the background ofcollaborative design building industry, and presents a model for collaborative designprocess management based on C/S+B/S. Main contents of this paper are as follows:(1) Research on the workflow technology of building-collaborative design.Detailed analysis of the complex business processes of building-collaborative design,and special requirements of these workflow engines. This paper proposed a model forthe building collaborative design workflow management system and describe itsarchitecture which can provide theoretical support for building a complex workflowmanagement system.(2) The access control model design of support workflow and teamwork. Thispaper put forward a support workflow and teamwork enhancement RBAC model(TG-RBAC), to solve the problem of the existing access control model can not meetthe special needs of the complex process of building collaborative design workflow.The model introduced some components including workflow task, workflow context,team, collaborative constraint et al to enhancement the traditional RBAC model,which can meet the special needs of the building collaborative design workflow. Itlaid a theoretical foundation for the realization of access control system.(3) Research on the protection technology of engineering drawings. A automaticdecryption drawing protection scheme based on plug-in is proposed, and a fast DWGimage encryption method is provided, which can solve the problem of only useAutoCAD provided drawings protection function can’t satisfy the special needs of thelarge building design project. In order to solve the problem of image copyrightprotection, the paper realizes a digital watermarking algorithm which canautomatically adjust the intensity of the watermark embedding based on texture features of the image. Experiments shows that this adaptive embedding scheme cannot only improve the robustness of the algorithm, but also can ensure that thewatermarked image with good visibility.(4) The design of collaborative design process management model. Acollaborative design process management model based on C/S and B/S is designed.Then we implemented a collaborative design process management system to addressbuilding design and collaborative disjointed phenomenon under the background ofbuilding collaborative design process.This paper studies several key issues of complex process management inengineering design. A collaborative design process management model is proposed,the proposed model can be used to build a building-collaborative design processmanagement system, it can also apply to other collaborative engineering environment.Therefore the research of these topics are of vital universal significance.