Fraunhofer-Institut für Angewandte Informationstechnik FIT

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Now showing 1 - 10 of 125
  • Publication
    Vagueness in communication. Introduction
    ( 2011)
    Nouwen, R.
    ;
    Rooij, R. van
    ;
    Sauerland, U.
    ;
    Schmitz, H.-C.
  • Publication
    Metamodelling with datalog and classes: ConceptBase at the age of 21
    ( 2010)
    Jarke, M.
    ;
    Jeusfeld, M.A.
    ;
    Nissen, H.W.
    ;
    Quix, C.
    ;
    Staudt, M.
    ConceptBase is a deductive object-oriented database system intended for the management of metadata. A distinguishing feature of the Telos language underlying ConceptBase is the ability to manage rules and constraints across multiple levels of instantiation in so-called meta formulas, thus offering uniform consistency management across heterogeneous notations or ontologies. Originally developed in the context of model-driven database design in the late 1980's, ConceptBase has been used in several thousand installations all over the world for numerous applications in areas such as requirements engineering, engineering information management, model management, eLearning, cultural information systems, and data warehousing. The internal representation is based on a quadruple object structure, combined with advanced Datalog engines, such that many optimization techniques in ConceptBase have pioneered ideas later pursued in the implementation of XML databases and ontology-based reasoning and data management engines.
  • Publication
    Demands of modern PLEs and the ROLE approach
    ( 2010)
    Kirschenmann, U.
    ;
    Scheffel, M.
    ;
    Friedrich, M.
    ;
    Niemann, K.
    ;
    Wolpers, M.
  • Publication
    The challenge of mainstreaming ICT design for all
    ( 2010)
    Whitney, G.
    ;
    Keith, S.
    ;
    Schmidt-Belz, B.
  • Publication
    A framework for the domain-independent collection of attention metadata
    ( 2010)
    Scheffel, M.
    ;
    Friedrich, M.
    ;
    Niemann, K.
    ;
    Kirschenmann, U.
    ;
    Wolpers, M.
  • Publication
    Introducing a social backbone to support access to digital resources
    ( 2010)
    Memmel, M.
    ;
    Wolpers, M.
    ;
    Condotta, M.
    ;
    Niemann, K.
    ;
    Schirru, R.
  • Publication
    Accessibility of blended and e-learning for mature age and disabled students and staff. Introduction to the special thematic session
    ( 2010)
    Petrie, H.
    ;
    Power, C.
    ;
    Velasco, C.A.
    ;
    Boticario, J.G.
    Blended learning, the use of a combination of face-to-face and distance learning techniques, is becoming very common in all educational sectors. Almost all educational institutions now use websites to communicate with students, provide them with learning resources and, increasingly, allow students and staff to collaborate with each other. Many institutions use their own websites, others use virtual learning environments (VLEs) or learning management systems (LMSs). The transition of institutions to all learning being through electronic channels, or e-learning, is also becoming increasingly prevalent, particularly in the higher and further education domains. Even in primary and secondary school systems, the integration of virtual classrooms, multimedia resources and electronic whiteboards have further blurred the lines between the virtual and the physical world.
  • Publication
    Early experiences with responsive open learning environments
    ( 2010)
    Wolpers, M.
    ;
    Ullrich, C.
    ;
    Renzel, D.
    ;
    Friedrich, M.
    ;
    Klamma, R.
  • Publication
    The secret life of machines - boundary objects in maintenance, repair and overhaul
    ( 2010)
    Betz, M.
    The increasing level of automation in tight just-in-time subcontracting relationships in the automotive industry makes the complex, weak structured, knowledge intense and highly cooperative practice of Reactive Maintenance (RM) in Maintenance Repair and Overhaul (MRO) in this branch a demanding and stressful job. In this paper two typical breakdown situations are presented which occurred in a participative observation to gain insights to this field. Based on the analysis of the observations and the existing MRO related IT infrastructure we refer to the theoretical concept of 'boundary objects' to understand the practice in this field. Finally, implications for design for a MRO supporting pervasive computing environment are derived from this conceptualization. We highlight the potentials of attaching relevant information to physical objects in place to support and motivate documentation by bridging the physical world of machines with the virtual information space and to enhance the discovering of relevant information in breakdowns situations.
  • Publication
    The brave new world of design requirements - four key principles
    ( 2010)
    Jarke, M.
    ;
    Loucopoulos, P.
    ;
    Lyytinen, K.
    ;
    Mylopoulos, J.
    ;
    Robinson, W.