Control principles and role hierarchies
RBAC '98 Proceedings of the third ACM workshop on Role-based access control
Exception Handling in Workflow Management Systems
IEEE Transactions on Software Engineering - special section on current trends in exception handling—part II
A Transactional Nested Process Management System
ICDE '96 Proceedings of the Twelfth International Conference on Data Engineering
ATAL '01 Revised Papers from the 8th International Workshop on Intelligent Agents VIII
Modeling Supply-Chain Networks by a Multi-Agent System
HICSS '98 Proceedings of the Thirty-First Annual Hawaii International Conference on System Sciences-Volume 5 - Volume 5
ECOWS '05 Proceedings of the Third European Conference on Web Services
Data processing spheres of control
IBM Systems Journal
Web Services: Concepts, Architectures and Applications
Web Services: Concepts, Architectures and Applications
Formalizing visibility characteristics in hierarchical systems
Data & Knowledge Engineering
A highly flexible data structure for multi-level visibility of P2P communities
ICDCN'08 Proceedings of the 9th international conference on Distributed computing and networking
| Hi-index | 0.00 |
We consider hierarchical systems where nodes represent entities and edges represent binary relationships among them. An example is a hierarchical composition of Web services where the nodes denote services and edges represent the parent-child relationship of a service invoking another service. A fundamental issue to address in such systems is, for two nodes X and Y in the hierarchy whether X can see Y, that is, whether X has visibility over Y. In a general setting, X seeing Y may depend on (i) X wishing to see Y, (ii) Y wishing to be seen by X, and (iii) other nodes not objecting to X seeing Y. The visibility could be with respect to certain attributes like operational details, execution logs, security related issues, etc. In this paper, we develop a generic conceptual model to express visibility. We study two complementary notions: sphere of visibility of a node X that includes all the nodes in the hierarchy that X sees; and sphere of noticeability of X that includes all the nodes that see X. We also identify the dual properties, coherence and correlation, that relate the visibility and noticeability notions. We propose elegant methods of constructing the spheres with these properties.