Anna S. Kefala

According to our database, Anna S. Kefala authored at least 6 papers between 1999 and 2022.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2022

Continuous authorization over HTTP using Verifiable Credentials and OAuth 2.0.

Nikos Fotiou, Evgenia Faltaka, Vasilis Kalos, Anna S. Kefala, Iakovos Pittaras, Vasilios A. Siris, George C. Polyzos

Proceedings of the Open Identity Summit 2022, Copenhagen, Denmark, July 7-8, 2022., 2022

2019

Quality of learner experience in technology-enhanced learning: a reference layered framework, model instantiation guidelines and empirical Investigation

Anna S. Kefala

PhD thesis, 2019

2007

A UML Definition of a Management Framework for e-Learning Session-centric Services.

Theodore K. Apostolopoulos, Anna S. Kefala

Proceedings of the WEBIST 2007, 2007

2004

An XML-Based E-learning Service Management Framework.

Theodore K. Apostolopoulos, Anna S. Kefala

Proceedings of the IEEE International Conference on Advanced Learning Technologies, 2004

2003

An E-Learning Service Management Architecture.

Theodore K. Apostolopoulos, Anna S. Kefala

Proceedings of the 2003 IEEE International Conference on Advanced Learning Technologies, 2003

1999

Developing Distant Learning Services over Broadband Networks: Concepts and Alternatives.

Theodore K. Apostolopoulos, Anna S. Kefala

Proceedings of the Internet, Multimedia Systems and Applications, 1999