Open systems are characterized by heterogeneous participants which can enter or leave the system at will. Typical examples are e-commerce applications or information agent systems...
This paper makes two main contributions towards establishing support for application-specific factors in middleware security mechanisms. First, it develops a simple classification...
Abstract. Active mathematical documents are distinguished from traditional paper-oriented ones by their ability to interactively adapt to a reader’s inputs. This includes changes...
Abstract. Many different access control policies and models have been developed to suit a variety of goals; these include Role-Based Access Control, One-directional Information Flo...
Vincent C. Hu, Deborah A. Frincke, David F. Ferrai...
Advanced applications in fields like electronic publishing and telecooperation face the problem of handling multimedia information. Conventional database systems do not offer adeq...