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    <article-meta>
      <title-group>
        <article-title>18th International Workshop on OCL and Textual Modeling (OCL 2018)</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <string-name>Achim D. Brucker</string-name>
          <email>a.brucker@sheffield.ac.uk</email>
          <xref ref-type="aff" rid="aff0">0</xref>
          <xref ref-type="aff" rid="aff2">2</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Robert Clarisó</string-name>
          <xref ref-type="aff" rid="aff0">0</xref>
          <xref ref-type="aff" rid="aff3">3</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Hao Wu</string-name>
          <email>haowu@cs.nuim.ie</email>
          <xref ref-type="aff" rid="aff0">0</xref>
          <xref ref-type="aff" rid="aff1">1</xref>
        </contrib>
        <aff id="aff0">
          <label>0</label>
          <institution>Achim D. Brucker</institution>
          ,
          <addr-line>Robert Clarisó, and Hao Wu</addr-line>
        </aff>
        <aff id="aff1">
          <label>1</label>
          <institution>Maynooth University</institution>
          ,
          <country country="IE">Ireland</country>
        </aff>
        <aff id="aff2">
          <label>2</label>
          <institution>The University of Sheffield</institution>
          ,
          <addr-line>Sheffield</addr-line>
          ,
          <country country="UK">UK</country>
        </aff>
        <aff id="aff3">
          <label>3</label>
          <institution>Universitat Oberta de Catalunya</institution>
          ,
          <country country="ES">Spain</country>
        </aff>
      </contrib-group>
      <pub-date>
        <year>2018</year>
      </pub-date>
    </article-meta>
  </front>
  <body>
    <sec id="sec-1">
      <title>Preface</title>
      <p>In software development, modeling is often associated with the use of graphical
notations such as UML and its precursors. Such visual representations enable
direct intuitive capturing of reality, but they have weaknesses: for example,
detailed visual representations bear the risk of becoming overcrowded faster than
textual models and some of the visual features lack the level of precision
required to create complete and unambiguous specifications. These weaknesses
of graphical notations encouraged the development of text-based modeling
languages that either integrate with or replace graphical notations for modeling.
Typical examples of such languages are OCL, textual MOF, Epsilon, and Alloy.
Textual modeling languages have their roots in formal language paradigms like
logic, programming and databases.</p>
      <p>The main goal of this workshop is to create a forum where researchers and
practitioners interested in building models using OCL or other kinds of textual
languages can directly interact, report advances, share results, identify tools for
language development, and discuss appropriate standards.</p>
      <p>This year, nine papers (seven full papers and two short papers0 haven been
accepted for presentations at the workshop. Each submitted paper was reviewed
by at least three members of the program committee. The accepted papers range
from improving the evaluation and validation of (textual) models to enhancing
the expressiveness of (textual) modeling languages to advancing the state of
visual representation of complex constraints.
Achim D. Brucker
Robert Clarisó
Hwo Wu</p>
    </sec>
    <sec id="sec-2">
      <title>Program Committee</title>
      <sec id="sec-2-1">
        <title>The University of Sheffield (UK)</title>
        <p>Universitat Oberta de Catalunya (Spain)</p>
        <p>Maynooth University (Ireland)
Thomas Baar HTW Berlin (Germany)
Mira Balaban Ben - Gurion University of the Negev (Israel)
Tricia Balfe Nomos Software (Ireland)
Domenico Bianculli University of Luxembourg (Luxembourg)
Robert Bill Vienna University of Technology (Austria)
Achim D. Brucker The University of Sheffield (UK)
Jordi Cabot Inria - Open University of Catalonia (Spain)
Dan Chiorean Babes - Bolyai University (Romania)
Robert Clarisó Universitat Oberta de Catalunya (Spain)
Tony Clark Sheffield Hallam University (UK)
Manuel Clavel IMDEA Software Institute (Spain)
Birgit Demuth Technische Universitat Dresden (Germany)
Martin Gogolla University of Bremen (Germany)
Adolfo Sanchez-Barbudo Herrera University of York (UK)
Istvan Rath Budapest University (Hungary)
Jan Oliver Ringert Tel Aviv University (Israel)
Bernhard Rumpe RWTH Aachen (Germany)
Frederic Tuong Nanyang Technological University (Singapore)
Edward Willink Willink Transformations Ltd . (UK)
Hao Wu Maynooth University (Ireland)
Burkhart Wolff Univ. Paris-Sud (France)
Steffen Zschaler King ’s College (UK)</p>
      </sec>
    </sec>
    <sec id="sec-3">
      <title>Additional Reviewers</title>
      <p>Manuela Dalibor
Khanh-Hoang Doan
Lukas Netz</p>
      <sec id="sec-3-1">
        <title>RWTH Aachen (Germany)</title>
        <p>University of Bremen (Germany)
RWTH Aachen (Germany)</p>
      </sec>
    </sec>
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