Role-Based Access Control Models
Computer
Freeflow: mediating between representation and action in workflow systems
CSCW '96 Proceedings of the 1996 ACM conference on Computer supported cooperative work
Future directions in role-based access control
RBAC '95 Proceedings of the first ACM Workshop on Role-based access control
Formal specification for role based access control user/role and role/role relationship management
RBAC '98 Proceedings of the third ACM workshop on Role-based access control
Tolerating Deviations in Process Support Systems via Flexible Enactment of Process Models
IEEE Transactions on Software Engineering
Tolerating exceptions in workflows: a unified framework for data and processes
WACC '99 Proceedings of the international joint conference on Work activities coordination and collaboration
Logic representation of processes in work activity coordination
SAC '00 Proceedings of the 2000 ACM symposium on Applied computing - Volume 1
Beyond workflow management: product-driven case handling
GROUP '01 Proceedings of the 2001 International ACM SIGGROUP Conference on Supporting Group Work
On building workflow models for flexible processes
ADC '02 Proceedings of the 13th Australasian database conference - Volume 5
PRES: a practical flexible RBAC workflow system
ICEC '05 Proceedings of the 7th international conference on Electronic commerce
Integration and verification of semantic constraints in adaptive process management systems
Data & Knowledge Engineering
The Declarative Approach to Business Process Execution: An Empirical Test
CAiSE '09 Proceedings of the 21st International Conference on Advanced Information Systems Engineering
Flexible workflow incorporated with RBAC
CSCWD'05 Proceedings of the 9th international conference on Computer Supported Cooperative Work in Design II
Optimistic anonymous participation in inter-organizational workflow instances
ICISS'06 Proceedings of the Second international conference on Information Systems Security
Information and Software Technology
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This work presents the idea and a prototype of workflow systems whose definition is based on constraints. The flexibility is reached through the less rigid definition of workflow definitions - the workflow is defined as a set of pre and post conditions of activities, which are selected dynamically as the process instance unfolds. The workflow system besides dispatching activities that have all their preconditions fulfilled to be executed, also helps users to decide which activity to chose through what if scenarios. The system also includes an access control model which not only represents which users have the authority to chose and execute the activities but also the authority to override the constraints. In particular, overriding constraints is itself an activity and thus may have pre and post conditions defined in other constraints. The paper present Tucupi, a prototype of such constraint based WFMS.