Balanced scheduling of distributed workflow tasks based on clustering

2020 ◽  
Vol 199 ◽  
pp. 105930 ◽  
Author(s):  
Dongjin Yu ◽  
Yuke Ying ◽  
Lei Zhang ◽  
Chengfei Liu ◽  
Xiaoxiao Sun ◽  
...  
Keyword(s):  
Distributed Workflow ◽  
Workflow Tasks

W-RBAC — A Workflow Security Model Incorporating Controlled Overriding of Constraints

2003 ◽  
Vol 12 (04) ◽  
pp. 455-485 ◽  
Author(s):  
Jacques Wainer ◽  
Paulo Barthelmess ◽  
Akhil Kumar
Keyword(s):  
Exception Handling ◽  
Preference Ranking ◽  
Role Based Access Control ◽  
Security Model ◽  
Workflow Systems ◽  
Basic Model ◽  
Access Control Models ◽  
Role Based ◽  
Workflow Tasks ◽  
Selection Of

This paper presents a pair of role-based access control models for workflow systems, collectively known as the W-RBAC models. The first of these models, W0-RBAC is based on a framework that couples a powerful RBAC-based permission service and a workflow component with clear separation of concerns for ease of administration of authorizations. The permission service is the focus of the work, providing an expressive logic-based language for the selection of users authorized to perform workflow tasks, with preference ranking. W1-RBAC extends the basic model by incorporating exception handling capabilities through controlled and systematic overriding of constraints.

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