A configurable access control system for networked manufacturing monitoring using XML

摘要

With the development of networked manufacturing, large amounts of real-time data in manufacturing process monitoring are transmitted and exchanged on the Web. Information security and assurance have to be taken into account, such as limiting the view of the intended audience to only relevant portions of the state data and operating the permitted devices or partial control units. This paper provides a secure framework based on role-based access control (RB AC) for networked manufacturing monitoring. In such a framework, fine-grained access control is accomplished by defining rules at the XPath-level of the real-time state data and control instructions documents, which are represented in the extensible Markup Language (XML) format. To achieve role-based configuration, the monitored variables and client interface vary with the roles of the user logging into the monitoring server to create "need to know" protections on critical information.