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  • 1.
    Bououd, Ikram
    et al.
    Institut Supérieur de Gestion Gabès, Tunisia.
    Rouis, Sana
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Industriell Ekonomi.
    Boughzala, Imed
    Telecom Ecole de Management, Institut Mines-Telecom, Evry, France.
    Makhlouf, Mohamed
    Department of Operations Management and Information Systems, KEDGE Business School, Talence, France.
    Impact of object manipulation, customization and social loafing on competencies management in 3D Virtual Worlds2016Inngår i: Information Systems Frontiers, ISSN 1387-3326, E-ISSN 1572-9419, Vol. 18, nr 6, s. 1191-1203Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    3D Virtual Worlds (VW) are rich and promising collaboration tools limitedly introduced to support competence management, yet, extensively used to enhance knowledge sharing (KS) and support knowledge application (KA). Nevertheless, KS and KA represent a challenging medium to leverage individual as well as organization’s competencies. Characterized by a realistic visual dimension in representing work environment and a growing capacity of simulation, 3D platforms facilitate and value competence formation. Present study analyzes role of 3D VW technology unique characteristics (i.e. object manipulation and avatar and 3D environment customization) and specific personal character social loafing, on competencies acquisition. Individual performance and organizational performance were measured to assess individual and organizational competences. Answers from 144 users of 3D VWs were analyzed. Results show that social loafing has significant negative effect on knowledge sharing. Customization and object manipulation have significant, yet small moderating effect on 3D VW technology use and knowledge sharing. KS subsequent effect on KA, individual and organizational competencies are significant. Limitations and new research directions are presented.

  • 2.
    Lee, Cheng-Chi
    et al.
    Department of Library and Information Science, Fu Jen Catholic University, New Taipei City, Taiwan, Republic of China; Department of Photonics and Communication Engineering, Asia University, Taichung, Taiwan, Republic of China.
    Li, Chun-Ta
    Department of Information Management, Tainan University of Technology, Tainan, Taiwan, Republic of China.
    Cheng, Chung-Lun
    Department of Library and Information Science, Fu Jen Catholic University, New Taipei City, Taiwan, Republic of China.
    Lai, Yan-Ming
    Department of Computer Science and Information Engineering, National Taiwan University, Taipei, Taiwan, Republic of China.
    Vasilakos, Athanasios
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    A Novel Group Ownership Delegate Protocol for RFID Systems2019Inngår i: Information Systems Frontiers, ISSN 1387-3326, E-ISSN 1572-9419, Vol. 21, nr 5, s. 1153-1166Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    In recent years, Radio Frequency Identification (RFID) applications of various kinds have been blooming. However, along with the stunning advancement have come all sorts of security and privacy issues, for RFID tags oftentimes store private data and so the permission to read a tag or any other kind of access needs to be carefully controlled. Therefore, of all the RFID-related researches released so far, a big portion focuses on the issue of authentication. There have been so many cases where the legal access to or control over a tag needs to be switched from one reader to another, which has encouraged the development of quite a number of different kinds of ownership transfer protocols. On the other hand, not only has the need for ownership transfer been increasing, but a part of it has also been evolving from individual ownership transfer into group ownership transfer. However, in spite of the growing need for practical group ownership transfer services, little research has been done to offer an answer to the need. In this paper, we shall present a new RFID time-bound group ownership delegate protocol based on homomorphic encryption and quadratic residues. In addition, in order to provide more comprehensive service, on top of mutual authentication and ownership delegation, we also offer options for the e-th time verification as well as the revocation of earlier delegation.

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