Publications

@INPROCEEDINGS{1630622,
author={Günther Specht and Timo Weithöner},
booktitle={7th International Conference on Mobile Data Management (MDM'06)},
title={Context-Aware Processing of Ontologies in Mobile Environments},
year={2006},
pages={86-86},
keywords={Computer applications;Computer architecture;Context-aware services;Information systems;Logic devices;Mobile computing;Ontologies;Relational databases;Semantic Web;Spatial databases},
doi={10.1109/MDM.2006.55},
ISSN={1551-6245},
month={May},}

@article {IIS2:IIS202788,
author = {Eckert, Roland},
title = {Conflict in Systems Engineering Product Data Exchange Standardisation},
journal = {INCOSE International Symposium},
volume = {16},
number = {1},
issn = {2334-5837},
url = {http://dx.doi.org/10.1002/j.2334-5837.2006.tb02788.x},
doi = {10.1002/j.2334-5837.2006.tb02788.x},
pages = {882--894},
year = {2006},
}

@article {IIS2:IIS200731,
author = {Eckert, Roland and Mansel, Wolfgang and Specht, Günther},
title = {Enhanced Interoperability for Systems Engineering Data by a Transformation Report},
journal = {INCOSE International Symposium},
volume = {15},
number = {1},
issn = {2334-5837},
url = {http://dx.doi.org/10.1002/j.2334-5837.2005.tb00731.x},
doi = {10.1002/j.2334-5837.2005.tb00731.x},
pages = {1059--1073},
year = {2005},
}

@article {SYS:SYS20018,
author = {Eckert, Roland and Mansel, Wolfgang and Specht, Günther},
title = {Model transfer among CASE tools in systems engineering},
journal = {Systems Engineering},
volume = {8},
number = {1},
publisher = {Wiley Subscription Services, Inc.},
issn = {1520-6858},
url = {http://dx.doi.org/10.1002/sys.20018},
doi = {10.1002/sys.20018},
pages = {41--50},
keywords = {STEP, SEDRES, Computer-Aided Design, interoperability, data translation, standards},
year = {2005},
}

@Article{Sauter2005,
author="Sauter, Patrick
and V{\"o}gler, Gabriel
and Specht, G{\"u}nther
and Flor, Thomas",
title="A Model--View--Controller extension for pervasive multi-client user interfaces",
journal="Personal and Ubiquitous Computing",
year="2005",
volume="9",
number="2",
pages="100--107",
abstract="This paper addresses the implementation of pervasive Java Web applications using a development approach that is based on the Model--View--Controller (MVC) design pattern. We combine the MVC methodology with a hierarchical task-based state transition model in order to achieve the distinction between the task state and the view state of an application. More precisely, we propose to add a device-independent TaskStateBean and a device-specific ViewStateBean for each task state as an extension to the J2EE Service to Worker design pattern. Furthermore, we suggest representing the task state and view state transition models as finite state automata in two sets of XML files. This paper shows that the distinction between an application's task state and view state is both intuitive and facilitates several, otherwise complex, tasks, such as changing devices ``on the fly.''",
issn="1617-4917",
doi="10.1007/s00779-004-0314-7",
url="http://dx.doi.org/10.1007/s00779-004-0314-7",
publisher={Springer}
}

@INPROCEEDINGS{7461298,
author={R. Eckert and W. Mansel and G. Specht},
booktitle={2005 IEEE International Technology Management Conference (ICE)},
title={STEP AP233 + standard PDM = systems engineering PDM?},
year={2005},
pages={1-8},
keywords={ISO standards;electronic data interchange;manufacturing industries;product life cycle management;production engineering computing;systems engineering;CASE tools;STEP AP233;STEP ISO 10303 application protocols;data exchange aspects;information creation;information dissemination;information management;information use;manufacturing industry;mechanical engineering;product data management;product definition information;standard PDM;systems engineering PDM system;Computer aided software engineering;Lead;AP223;Data Exchange;PDM;STEP;System Engineering},
doi={10.1109/ITMC.2005.7461298},
month={June},
publisher={IEEE},}

@Inbook{Weithöner2004,
author="Weith{\"o}ner, Timo
and Liebig, Thorsten
and Specht, G{\"u}nther",
editor="Meersman, Robert
and Tari, Zahir
and Corsaro, Angelo",
title="Efficient Processing of Huge Ontologies in Logic and Relational Databases",
bookTitle="On the Move to Meaningful Internet Systems 2004: OTM 2004 Workshops: OTM Confederated International Workshops and Posters, GADA, JTRES, MIOS, WORM, WOSE, PhDS, and INTEROP 2004, Agia Napa, Cyprus, October 25-29, 2004. Proceedings",
year="2004",
publisher="Springer Berlin Heidelberg",
address="Berlin, Heidelberg",
pages="28--29",
isbn="978-3-540-30470-8",
doi="10.1007/978-3-540-30470-8_13",
url="http://dx.doi.org/10.1007/978-3-540-30470-8_13"
}

@Inproceedings{kalb2004metadata,
  author={Specht, G. and Kalb, M.},
  title={Zeitliche Verwaltung XML-basierter Metadaten in digitalen Bibliotheken},
  booktitle={Proc. 9. I.u.K.-Konferenz (Information und Kommunikation), revised papers},
  pages={227-238},
  year={2004},
}

@inproceedings{workshopgetconnected_specht_2004,
  title={Workshop - Get Connected to the Mobile World - Data Management in Mobile Environments},
  author={Specht, G{\"u}nther and Marron, Pedro},
  booktitle={Proc. Informatik 2004, 34. Jahrestagung der GI, GI Lecture Notes in Informatics, P-50},
  pages={287},
  year={2004},
  organization={}
}

@inproceedings{weithoner2004verarbeitung,
  title={Verarbeitung von Ontologien in mobilen Umgebungen},
  author={Weith{\"o}ner, Timo and Specht, G{\"u}nther},
  booktitle={GI Lecture Notes in Informatics},
  year={2004},
  
}

@book{sabrina161,
           title = {Mobile Datenbanksysteme},
          author = {Bela Mutschler and G{\"u}nther Specht},
       publisher = {Springer-Verlag},
            year = {2004},
             url = {http://dbis.eprints.uni-ulm.de/161/},
        abstract = {Das Buch liefert eine fundierte Einf{\"u}hrung in generische Architekturen und konkrete Implementierungskonzepte sowie einen {\"U}berblick {\"u}ber existierende Technologien und Konzepte f{\"u}r mobile Datenbanksysteme. Zentrale Themen sind spezifische und klassische Replikationsverfahren und ihre Eignung im mobilen Umfeld, mobile Transaktionsmodelle, spezielle Implementierungskonzepte f{\"u}r Pico-Datenbanksysteme, besonders effiziente Speicherkonzepte und Methoden der Anfrageausf{\"u}hrung. Anhand von marktreifen kommerziellen Datenbanksystemen werden realisierte Anwendungsarchitekturen und Implementierungskonzepte erl{\"a}utert.}
}

@Inbook{Sauter2004,
author="Sauter, Patrick
and V{\"o}gler, Gabriel
and Specht, G{\"u}nther
and Flor, Thomas",
editor="M{\"u}ller-Schloer, Christian
and Ungerer, Theo
and Bauer, Bernhard",
title="Extending the MVC Design Pattern towards a Task-Oriented Development Approach for Pervasive Computing Applications",
bookTitle="Organic and Pervasive Computing -- ARCS 2004: International Conference on Architecture of Computing Systems, Augsburg, Germany, March 23-26, 2004. Proceedings",
year="2004",
publisher="Springer Berlin Heidelberg",
address="Berlin, Heidelberg",
pages="309--321",
isbn="978-3-540-24714-2",
doi="10.1007/978-3-540-24714-2_23",
url="http://dx.doi.org/10.1007/978-3-540-24714-2_23"
}

@inproceedings{sabrina154,
       booktitle = {Proc. 6th NASA-ESA Workshop on Product Data Exchange (PDE 04)},
           month = {April},
           title = {Transformation Report: The missing Standard for Data Exchange},
          author = {Roland Eckert and G{\"u}nther Specht},
            year = {2004},
           pages = {1--7},
             url = {http://dbis.eprints.uni-ulm.de/154/},
        abstract = {The data exchange with STEP ISO 10303 is state of the art, but it is still a fundamental problem to guarantee a given quality of service to integrated operational and informational applications. In STEP there are defined descriptive methods, data specifications, implementation resources and conformance testing, but there is nothing to document how the data is processed. A success report of the mapped data from the source to the target tool is missing. In this paper we introduce a Transformation Report for documenting the data transformation from the source to the target tool. With this report the trustworthiness of the received data can be significantly improved by documenting the data loss, semantic and syntactic errors. With the information in the report it should be possible to infer the proper value to define rules that fix the data after it has been determined to be incorrect or to find a suitable data integrations strategy into a target tool or repository. The intention of the paper is to suggest a standardised Transformation Report, that can be automatically processed and that contains all information for an automated reconciliation process.}
}

@inproceedings{sabrina155,
       booktitle = { Proc. 13th Conf. Product Data Technology (PDT Europe 2004)},
           month = {October},
           title = {Challenge of Design Data Exchange between heterogeneous Database Schema},
          author = {Roland Eckert and G{\"u}nther Specht},
            year = {2004},
           pages = {125--132},
             url = {http://dbis.eprints.uni-ulm.de/155/},
        abstract = {The development of complex systems becomes increasingly difficult. The diversity and number of tools necessary to develop such a system is extensive. One solution to
exchange engineering data between these tools is the Standard for Product Data Exchange (STEP), ISO 10303. It offers domain specific database schema called application protocols. This paper analyses the problems of the data exchange between tools via an application protocol. and proposes a Transformation Report, which records individual transformation steps during the exchange between two different tools. The Transformation Report supports the
understanding of the data exchange process and helps correcting incomplete or incorrect transformed data.}
}

@Inproceedings{specht2004openarchives,
  author={Specht, Günther and Bauer, Michael G.},
  title={Weiterentwicklung von digitalen Bibliothekssystemen zu OpenArchives-Systemen},
  year={2004},
  booktitle={Proc. 9. I.u.K.-Konferenz (Information und Kommunikation), revised papers},
  pages={213--226},
}

@inproceedings{sabrina175,
       booktitle = {Proc. Workshop  Mobilit{\"a}t und Informationssysteme},
           month = {October},
           title = {Implementierungskonzepte und Anwendungsentwicklung kommerzieller mobiler Datenbanksysteme - Ein Vergleich},
          author = {Bela Mutschler and G{\"u}nther Specht},
            year = {2003},
           pages = {67--76},
             url = {http://dbis.eprints.uni-ulm.de/175/},
        abstract = {In diesem Papier werden vier mobile Datenbanksysteme - IBM DB2 Everyplace, Oracle 9i Lite, Sybase UltraLite und Tamino Mobile ? bez{\"u}glich ihrer Architekturen und Implementierungskonzepte sowie ihrer Unterst{\"u}tzung bei der Entwicklung mobiler  Anwendungen verglichen. Dar{\"u}berhinausgehende Aspekte der mobilen Datenbanksysteme Pointbase Micro und eXtremeDB werden ebenfalls ber{\"u}cksichtigt. Schwerpunkte des Papiers sind, neben den unterschiedlichen Archi-tekturkonzepten, die von den Datenbanksystemen bereitgestellten Verfahren zur Replikation und Synchronisation.}
}

@inproceedings{sabrina172,
       booktitle = {Proc. Net.ObjectDays'03},
           month = {October},
           title = {Struktur-, Verhaltens- und Ausgabeschemata f{\"u}r Multimedia-Daten in objektrelationalen Datenbanksystemen},
          author = {Thomas Heimrich and G{\"u}nther Specht},
            year = {2003},
           pages = {314--321},
             url = {http://dbis.eprints.uni-ulm.de/172/},
        abstract = {Objektrelationale Datenbanken bieten sich heute f{\"u}r die Speicherung von unabh{\"a}ngigen Multimedia-Daten an. Die formalen Konzepte objektrelatio-naler Datenbanken ber{\"u}cksichtigen aber bisher keine spezielle Beziehungen (Substitutionsbeziehung, Synchronisationsbeziehung) zwischen Multimedia-Objekten. Wir stellen daher eine formale Erweiterung der Struktur- und Verhal-tensvererbung vor, die auch die Substitutionsbeziehung ber{\"u}cksichtigt. Weiter-hin wird ein Ausgabeschema als neues Konzept eingef{\"u}hrt, um die Synchroni-sationsbeziehungen f{\"u}r die Datenausgabe zu modellieren.}
}

@Inbook{Heimrich2003,
author="Heimrich, Thomas
and Specht, G{\"u}nther",
editor="Chaudhri, Akmal B.
and Jeckle, Mario
and Rahm, Erhard
and Unland, Rainer",
title="Enhancing ECA Rules for Distributed Active Database Systems",
bookTitle="Web, Web-Services, and Database Systems: NODe 2002 Web- and Database-Related Workshops Erfurt, Germany, October 7--10, 2002 Revised Papers",
year="2003",
publisher="Springer Berlin Heidelberg",
address="Berlin, Heidelberg",
pages="199--205",
isbn="978-3-540-36560-0",
doi="10.1007/3-540-36560-5_15",
url="http://dx.doi.org/10.1007/3-540-36560-5_15"
}

@inproceedings{sabrina173,
       booktitle = {Proc. Datenbanksysteme in B{\"u}ro, Technik und Wissenschaft (BTW'03)},
           month = {February},
           title = {T-XPath: Ein zeitliches Modell f{\"u}r XML-Datenbanken},
          author = {Markus Kalb and Kerstin Schneider and G{\"u}nther Specht},
            year = {2003},
           pages = {157--166},
             url = {http://dbis.eprints.uni-ulm.de/173/},
        abstract = {Bisherige XML-Datenbanken erlauben lediglich eine eingeschr{\"a}nkte Unterst{\"u}tzung von zeitlichen Daten und Anfragen. Das hier vorgestellte zeitliche Modell T-XPath erweitert das bisherige Datenmodell und die Anfragesprache XPath um eine flexible und effiziente Modellierung, Verwaltung und Abfragem{\"o}glichkeit von zeitlichen Informationen. Als Grundlage dienen abstrakte zeitliche Datentypen (ADT), die die gesamte zeitliche Entwicklungsgeschichte eines Wertes kapseln und zus{\"a}tzlich auch unscharfe und ungenaue Zeitangaben ber{\"u}cksichtigen k{\"o}nnen. Die Anfragesprache von T-XPath ist voll abw{\"a}rtskompatibel zu XPath und stellt f{\"u}r zeitliche Anfragen eine Reihe neuer Operationen und Funktionen zur Verf{\"u}gung.}
}

@inproceedings{Weithoner:2003:SQO:2889905.2889926,
 author = {Weith\"{o}ner, Timo and Liebig, Thorsten and Specht, G\"{u}nther},
 title = {Storing and Querying Ontologies in Logic Databases},
 booktitle = {Proceedings of the First International Conference on Semantic Web and Databases},
 series = {SWDB'03},
 year = {2003},
 location = {Berlin, Germany},
 pages = {313--332},
 numpages = {20},
 url = {http://dl.acm.org/citation.cfm?id=2889905.2889926},
 acmid = {2889926},
 publisher = {CEUR-WS.org},
 address = {Aachen, Germany, Germany},
} 

@inproceedings{sabrina220,
       booktitle = {Proc. Net. ObjectDays 2002},
           title = {Erweiterte ECA-Regeln f{\"u}r verteilte aktive Datenbanksysteme},
          author = {Thomas Heimrich and G{\"u}nther Specht},
            year = {2002},
           pages = {610--617},
             url = {http://dbis.eprints.uni-ulm.de/220/},
        abstract = {Zentrale ECA-Regeln wurden f{\"u}r zentrale aktive Datenbanksysteme entwickelt. In verteilten aktiven Datenbanksystemen tritt zus{\"a}tzlich das Prob-lem der Unerreichbarkeit von Teilsystemen auf und damit die Unentscheidbarkeit von ECA-Bedingungen, die sich auf entfernte Systeme beziehen. In diesem Papier wird daher eine entsprechende Erweiterung der ECA-Regeln f{\"u}r verteilte aktive Datenbanksysteme vorgeschlagen, um auch bei Unerreichbarkeit und Unentscheidbarkeit der ECA-Bedingungen reagieren zu k{\"o}nnen. Dazu wird zun{\"a}chst die ECA-Auswertung zu einer strikten Funktion mit dem Unerreichbar-keitszustand ? erweitert und dann die ECA-Regeln um Alternative Aktionen AA angereichert. Der Einsatz und Vorteil dieser erweiterten ECA-Regeln wird am Beispiel der Erhaltung der Datenkonsistenz in verteilten aktiven Datenbank-systemen gezeigt.}
}

@inproceedings{DBLP:conf/dexaw/BauerS01,
  author       = {Michael G. Bauer and
                  G{\"{u}}nther Specht},
  editor       = {A Min Tjoa and
                  Roland R. Wagner},
  title        = {The Object Oriented Document Model of a Meta System for Existing Digital
                  Libraries},
  booktitle    = {12th International Workshop on Database and Expert Systems Applications
                  {(DEXA} 2001), 3-7 September 2001, Munich, Germany},
  pages        = {933--936},
  publisher    = {{IEEE} Computer Society},
  year         = {2001},
  url          = {https://doi.org/10.1109/DEXA.2001.953174},
}

@misc{schindler7performanz,
  title={Performanz von XML-Datenbanksystemen},
  author={Schindler, Rita and Specht, G{\"u}nther and Schmatloch, Andre},
  publisher={Beitrag zum}
}

@inproceedings{bauer2001anchor,
  title={The anchor and linking concept of a meta system for existing digital libraries},
  author={Bauer, Michael G and Specht, G{\"u}nther},
  booktitle={7th MIK-Workshop, Proc. of Netobjectdays},
  pages={260--265},
  year={2001}
}