Managing Workflow Authorization Constraints through Active Database Technology

Fabio Casati (), Silvana Castano () and MariaGrazia Fugini ()
Additional contact information
Fabio Casati: Hewlett-Packard Laboratories
Silvana Castano: Università di Milano
MariaGrazia Fugini: Politecnico di Milano, Piazza L. Da Vinci

Information Systems Frontiers, 2001, vol. 3, issue 3, No 4, 319-338

Abstract: Abstract The execution of workflow processes requires authorizations for enforcing the assignment of tasks to agents, either human or automated, according to the security policy of the organization. This paper presents a workflow authorization framework based on roles and organizational levels, and on authorization constraints. To facilitate the assignment of tasks to agents, roles and organizational levels are organized into hierarchies. Authorization constraints are introduced to specify instance-dependent, time-dependent, and history-dependent authorizations. Authorization constraints are specified in terms of active rules, used also for authorization management. The Workflow Management System determines authorized agents on the basis of the contents of an authorization base maintained through the active rules defined in the system.

Keywords: workflows; authorizations; authorization constraints; roles; active databases; triggers (search for similar items in EconPapers)
Date: 2001
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Citations: View citations in EconPapers (2)

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DOI: 10.1023/A:1011461409620

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