NSF Award Abstract - #0426886| NSF Award Abstract - #0426886 |
| NSF Org | IIS |
| Latest Amendment Date | September 23, 2004 |
| Award Number | 0426886 |
| Award Instrument | Continuing grant |
| Program Manager |
Maria Zemankova IIS Division of Information & Intelligent Systems CSE Directorate for Computer & Information Science & Engineering |
| Start Date | October 1, 2004 |
| Expires | September 30, 2005 (Estimated) |
| Awarded Amount to Date | $161774 |
| Investigator(s) |
Randy Y.C. Chow chow@cise.ufl.edu (Principal Investigator)
R. Raymond Issa (Co-Principal Investigator) |
| Sponsor |
University of Florida 219 Grinter Hall Gainesville, FL 32611 352/392-1582 |
| NSF Program(s) |
ITR FOR NATIONAL PRIORITIES, BIOLOGY & INFORMATION TECHNOLO |
| Field Application(s) |
0104000 Information Systems, 0104000 Information Systems |
| Program Reference Code(s) |
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| Program Element Code(s) |
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The project proposes to develop a meta-object model and integrate it into the design of workflow systems. The meta-object model combines the affinity (desire-to-know) and privilege/obligation (need-to-know) information into a unified information model which facilitates efficient information access and secure access control. The Adlets and Malleable objects in this meta model are active objects that capture inter-dependency among object accesses. This information model is to be used to develop a new methodology for flexible and dynamic workflow system design. Traditional workflow systems are either process- or product-based. Different from these existing systems, workflows in the proposed information-based system models all workflows as activities of information accesses. As a result, it allows for incomplete specification of the initial workflow and dynamic construction of the workflow, i.e., exception and special sub-workflows are generated as needed when information accesses are invoked. There are two significant technical impacts in the research: the active meta-object model supports both performance and security for information access in a single uniform model, and the incorporation of it presents a new approach for workflow design which is more flexible and dynamic.