Narrow Results

Traditional access control of CSCW system is lack of delegation mechanism. For improving it and achieving resource share in the heterogeneous distributed environment, Role-Activity Based Delegation Model for CSCW (abbr. RABDM for CSCW) was presented based on RBAC policies and the important properties of activity, object-oriented visual modeling was also further represented using Unified Modeling Language. The model with time and constraint characters solves the issue of authorization centralization in the actual application of Graphics and Images Collaboration Processing System Based on CSCW, and realizes distributed and dynamic characters. Visual modeling also shortens the gap between the abstract theory model and implementation of the applied system, and benefits designing and development of systems based on the self-contained model.

Organization is an incorporate form of MAS. We study CGF modeling and simulation based on multi-agent from the viewpoint of organization, and establish an organization meta-model based on the four-layer architecture of mission/role/capability/agent. Basic elements of the meta-model were defined and described, the formalization description of the organization model was found out and an example to validate the model was given. The capability concept for organization role and agent was presented to improve the mission distribution flexibility and adaptability.