Petri nets and algebraic specifications
Theoretical Computer Science
An overview of transaction logic
Theoretical Computer Science - Special issue on formal methods in databases and software engineering
Dynamic change within workflow systems
COCS '95 Proceedings of conference on Organizational computing systems
A Light Workflow Management System Using SimpleProcess Models
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Exterminating the Dynamic Change Bug: A Concrete Approach to Support Workflow Change
Information Systems Frontiers
A Workflow Change Is a Workflow
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Improving Flexibility of Workflow Management Systems
Business Process Management, Models, Techniques, and Empirical Studies
Applying Petri Nets to Model SCORM Learning Sequence Specification in Collaborative Learning
AINA '05 Proceedings of the 19th International Conference on Advanced Information Networking and Applications - Volume 1
Learning Design: A Handbook on Modelling and Delivering Networked Education and Training
Learning Design: A Handbook on Modelling and Delivering Networked Education and Training
Developing a Learning Management System Based on the IMS Learning Design Specification
ICALT '06 Proceedings of the Sixth IEEE International Conference on Advanced Learning Technologies
Adaptation in current e-learning systems
Computer Standards & Interfaces
Patterns, designs and activities: unifying descriptions of learning structures
International Journal of Learning Technology
Adaptive and Intelligent Web-based Educational Systems
International Journal of Artificial Intelligence in Education
A grid based software architecture for delivery of adaptive and personalised learning experiences
Personal and Ubiquitous Computing
Constructing SCORM compliant course based on High-Level Petri Nets
Computer Standards & Interfaces
A top-down Petri net-based approach for dynamic workflow modeling
BPM'03 Proceedings of the 2003 international conference on Business process management
OPENET: Ontology-based engine for high-level Petri nets
Expert Systems with Applications: An International Journal
Tools to support the design, execution and visualization of instructional designs
CDVE'09 Proceedings of the 6th international conference on Cooperative design, visualization, and engineering
Simplified workflow representation of IMS learning design
ICCSA'11 Proceedings of the 2011 international conference on Computational science and its applications - Volume Part IV
Dynamic Adaptation in OPENET4LD
ICALT '11 Proceedings of the 2011 IEEE 11th International Conference on Advanced Learning Technologies
Petri net-based engine for adaptive learning
Expert Systems with Applications: An International Journal
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In this paper, we present a Petri net-based approach that facilitates making structural changes at runtime to units of learning specified in IMS Learning Design (IMS LD). The proposed change model makes use of the hierarchical Petri net model derived from IMS LD and a page substitution mechanisms to replace learning flow components on the fly. As a result, a new hierarchical Petri net is defined, verifying that changes do not cause inconsistencies, such as data loss or errors, in the learning process. Furthermore, two change modes have been implemented: a safe mode, for conservative modifications that do not affect participants, and an unsafe mode, which may require to transfer the participant execution to a safe point in the new structure. Our approach has been developed as an extension of a Petri net-based IMS LD engine and validated with a set of real units of learning.