Journal of
Systemics, Cybernetics and Informatics
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ISSN: 1690-4524 (Online)


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Honorary Editorial Advisory Board's Chair
William Lesso (1931-2015)

Editor-in-Chief
Nagib C. Callaos


Sponsored by
The International Institute of
Informatics and Systemics

www.iiis.org
 

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Editors

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Editorial Peer Review Methodology

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The Embodiment Dimension While Learning and Teaching in a Virtual World
Martine Gadille, Maria Antonietta Impedovo
(pages: 1-8)

Training Based Change Management Problem for Social Innovation
Mariann Somosi Veresné, György Kocziszky, Zoltán Nagy, Krisztina Varga
(pages: 9-17)

ALM Program: Ten Years of Educational Technology Interventions at the Faculty of Medicine at the Oldest National University in Perú
Maritza Placencia Medina, Javier Silva Valencia, Víctor Mechan Mendez, Rosa Pando Álvarez, Margot R. Quintana Salinas, Jorge R. Carreño Escobedo, Elías J. Carrasco Escobedo, Carlos A. Saavedra Castillo, Yanelli K. Ascacivar Placencia
(pages: 18-23)

Electric Discharge - Not an Impact Caused Formation of Upheaval Dome, Canyonlands National Park, Utah
Robert Hawthorne Jr.
(pages: 24-34)

A Technique for Program and Project Portfolio Prioritization: RAB2/E Matrix
Altino José Mentzingen de Moraes
(pages: 35-40)

System Design of WiFi-Signaling Based Accurate Occupancy Detection Scheme
Yukina Miwa, Akari Ushiyama, Hijiri Komura, Katsuhiro Naito
(pages: 41-46)

The Perception of the Urban Quality of Life Index in the Context of Smart Cities
Mariana Lima, Renata Baracho
(pages: 47-53)

Simon Says: "Send Money"
Patrick N. Conrad, Luay A. Wahsheh
(pages: 54-55)

Project Based Teaching Was the Answer. But What Is the Question?
Steinar Killi
(pages: 56-60)

Concept Design of Estimation Scheme for Social Graph Based on Occupancy Time in Space
Akari Ushiyama, Yukina Miwa, Shotaro Osaki, Yuki Yamada, Katsuhiro Naito
(pages: 61-67)

Building Competence: Expectations, Experience, and Evaluation of E-Government as a Topic in Administration Programs at the TH Wildau – A Case Study (Invited Paper)
Margit Christa Scholl
(pages: 68-78)


 

Abstracts

 


ABSTRACT


Implementation of Hierarchical Authorization For A Web-Based Digital Library

Andreas Geyer-Schulz, Anke Thede


Access control mechanisms are needed in almost every system nowadays to control what kind of access each user has to which resources and when. On the one hand access control systems need to be flexible to allow the definition of the access rules that are actually needed. But they must also be easy to administrate to prevent rules from being in place without the administrator realizing it. This is particularly difficult for systems such as a digital library that requires fine-grained access rules specifying access control at a document level. We present the implementation and architecture of a system that allows definition of access rights down to the single document and user level. We use hierarchies on users and roles, hierachies on access rights and hierarchies on documents and document groups. These hierarchies allow a maximum of flexibility and still keep the system easy enough to administrate. Our access control system supports positive as well as negative permissions.

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