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CSCW members of management and access control

Author: SuZuo
Tutor: ZengGuangZhou
School: Shandong University
Course: Applied Computer Technology
Keywords: CSCW Cooperative control Security controls Members of the management Access Control RBAC
CLC: TP393.09
Type: Master's thesis
Year: 2005
Downloads: 101
Quote: 4
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Abstract


Computer Supported Cooperative Work (CSCW) technology is a collaborative technology in the development of the new information age, is based on the rapid development of computer technology and network technology, the increasingly close collaboration needs to adapt to human society gradually developed. It will improve the work efficiency, promote the development of social productive forces, a profound impact on human society's mode of production, work and lifestyle. An important part of the members of the management and access control as a the CSCW key technical collaboration control mechanisms and security control mechanism, has been the focus of people's studies, they are designed to directly affect the performance of the entire CSCW system. This paper focuses on a real system implementation - based the CSCW instant messaging system (CIMS), the two parts of the in-depth study. The members of the management is a basic link CSCW collaborative control mechanisms premise of collaborative carried out smoothly. Due to the collaborative nature of CSCW groups, collaborative group is the collaboration of the most common forms of organization, management members of the management of the core members of the collaborative group state. CIMS system for members to establish a default collaborative group activities while allowing the dynamic changes of the members of the Working Group, a dynamic member of the system management mode, this paper gives the flow chart as well as members of the collaborative group management workflow management module. Security control mechanism CSCW one of the key technologies, including members of authentication, the members permission control as well as data encryption and decryption. This paper studies CSCW system environment member access control, CSCW access control major study how traditional access control technology is applied to CSCW environment. Common access control: Discretionary Access Control (DAC) and mandatory access control (MAC), and role-based access control (RBAC). RBAC is the in CSCW access control a widely used access control model. RBAC model, based on the role of setting permissions, permissions assigned to roles, and users were given a role, so as to establish the mapping between users and permissions. RBAC model for CSCW provides a flexible and effective access control mode. Traditional RBAC model neither given control role assignment, role permissions can not guarantee at least the principle of precedence. In this paper, the above defects exist in traditional RBAC systems, introduced the concept of user credibility and role instance proposed the dynamic user credibility RBAC model given a model of the implementation process. Given herein implemented system workflow and access control module used in the main data structure.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Computer network > General issues > The application of computer network
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