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<pre>
                                   Preface



The iStar workshop series is dedicated to the discussion of concepts, methods,
techniques, tools, and applications associated with i* and related approaches.
Following successful workshops in Trento, Italy (2001), London, England (2005),
Recife, Brazil (2008), Hammamet, Tunisia (2010), Trento, Italy (2011), Valen-
cia, Spain (2013), Thessaloniki, Greece (2014), Ottawa, Canada (2015), Beijing,
China (2016), and Essen, Germany (2017), this year, the 11th International i*
Workshop (iStar’18) was held in Tallinn, Estonia. As with previous editions, the
objective of the workshop was to provide a unique opportunity for researchers in
the area to exchange ideas, compare notes, and forge new collaborations. This
year, the workshop was in conjunction with the 30th International Conference
on Advanced Information Systems Engineering (CAiSE’18), benefiting from our
common themes and interests shared by the two events.
    We kept the workshop format informal so as to promote and maximize inter-
action. Aiming at an inclusive and discussion-oriented workshop, the main crite-
rion for paper acceptance in iStar’18 was relevance and potential for stimulating
discussion and possible collaborations among the participants. A 33-member
program committee, consisting of scholars and practitioners with expertise and
interest in the field, were involved in reviewing a total of 10 complete paper sub-
missions. Each of the papers was reviewed by three program committee members.
Of the submitted papers, 8 were accepted for presentation in the workshop and
revised versions of the papers are included in the proceedings that follow. In the
event, each paper was given 30 minutes for presentation and discussion.
   iStar’18 included a keynote by Prof. Oscar Pastor, from Universitat Politècnica
de València, entitled Making Software Fulfill Users Goals: From Goals
to Code. Finally, iStar’18 also included a 1h30 panel with the participation of
Giancarlo Guizzardi, Oscar Pastor and Jolita Ralyte, on iStar modelling in
practice: strengthening interdisciplinary research.
   We would like to thank all the members of the Program Committee and the
additional reviewers for providing their expertise and suggesting constructive
advises to improve the quality of the submissions. Last but not least, we want to
thank the organizers of the CAiSE 2018 conference for their valuable support.




Tallinn, June 12, 2018            Miguel Goulão, Marcela Ruiz and Angelo Susi
                                                           Program Co-Chairs
                                                                      iStar’18
II

Program Committee
Raian Ali               Bournemouth University, UK
Daniel Amyot            University of Ottawa, Canada
João Araújo           Universidade Nova de Lisboa, Portugal
Basak Aydemir           Utrecht University, The Netherlands
Amel Bennaceur          The Open University, UK
Juan Pablo Carvallo     Universidad del Azuay, Ecuador
Jaelson Castro          Universidade Federal de Pernambuco, Brazil
Dolors Costal           Universitat Politècnica de Catalunya, Spain
Luiz Marcio Cysneiros   York University, UK
Fabiano Dalpiaz         Utrecht University, The Netherlands
Neil Ernst              Software Engineering Institute, USA
Hugo Estrada            CENIDET, Mexico
Sepideh Ghanavati       Texas Tech University, USA
Renata Guizzardi        Universidade Federal do Espirito Santo, Brazil
Jennifer Horkoff        Chalmers UT and University of Gothenburg, Sweden
Tong Li                 Beijing University of Technology, China
Sotirios Liaskos        York University, UK
Lin Liu                 Tsinghua University, China
James Lockerbie         City University London, UK
Lidia Lopez             Universitat Politècnica de Catalunya, Spain
Alejandro Maté         University of Alicante, Spain
Haralambos Mouratidis   University of East London, UK
Elda Paja               University of Trento, Italy
Oscar Pastor            Universitat Politècnica de Valencia, Spain
Michalis Pavlidis       University of Brighton, UK
Anna Perini             Fondazione Bruno Kessler, Italy
Alberto Siena           Delta Informatica, Italy
Vitor E. Silva Souza    Universidade Federal do Espirito Santo, Brazil
Yvesv Wautelet          Katholieke Universiteit Leuven, Belgium
Eric Yu                 University of Toronto, Canada
Yijun Yu                The Open University, UK
Jelena Zdravkovic       Stockholm University, Sweden
Marc van Zee            University of Luxembourg, Luxembourg

Additional Reviewers
Jameleddine Hassine     King Fahd University of Petroleum and Minerals, Saudi
                        Arabia

Steering Committee
Xavier Franch           Universitat Politècnica de Catalunya, Spain
John Mylopoulos         University of Trento, Italy
Eric Yu                 University of Toronto, Canada
                                                         III

Program Co-Chairs
Miguel Goulão   Universidade Nova de Lisboa, Portugal
Marcela Ruiz     Utrecht University, The Netherlands
Angelo Susi      Fondazione Bruno Kessler, Italy

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