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|pdfUrl=https://ceur-ws.org/Vol-2490/xpreface.pdf
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<pdf width="1500px">https://ceur-ws.org/Vol-2490/xpreface.pdf</pdf>
<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), and Valencia, Spain (2013), Thessaloniki, Greece (2014) and Ottawa,
Canada (2015), Beijing, China (2016), Essen, Germany (2017), Tallinn, Estonia (2018), this year,
the 12th International i* Workshop (iStar’19) was held in Salvador, Brazil. As with previous
editions, the objective of the workshop is 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 38th International Conference on Conceptual Modeling (ER 2019),
benefiting from our common themes and interests shared by the two events.
        As with past editions, we kept the format informal so as to maximize interaction. Aiming at
an inclusive and discussion-oriented workshop, the main criterion for paper acceptance in iStar’19
was relevance and potential for raising discussion. A 31-member program committee, consisting
of scholars and practitioners with expertise and interest in the field, were involved in reviewing a
total of 16 complete paper submissions. Each of the papers were reviewed by three program
committee members. Of the submitted papers, all of them were accepted for presentation in the
workshop and revised versions of the papers are included in the proceedings that follow. In the
event, all the 16 accepted papers were given 15 minutes for presentation and discussion
organized in 3 sessions.
        In addition to the paper presentation sessions, the workshop, with MREBA workshop,
included a joint keynote speech given by Professor Professor Matthias Jarke (RWTH Aachen
University, Germany), entitled “Inter-Organizational Data Sharing: From Goals to Policies to
Code”. The event closed with an open brainstorming session through a wall of ideas, the
participants posted their key messages on particular topics, followed by a plenary discussion on
the most mentioned topics.
        We would like to acknowledge and thank all the authors who submit papers, they allow
iStar 2019 continue being a community reunion for sharing experiences. We would also like to
thank all the members of the Program Committee and the additional reviewers for providing their
expertise and suggesting constructive advice to improve the quality of the submissions. Last but
not least, we want to thank the organizers of the ER conference for their support.


                                         Lidia López, Universitat Politècnica de Catalunya, Spain
                                            Juan Pablo Carvallo, Universidad del Azuay, Ecuador
                                     João Pimentel, Universidade Federal de Pernambuco, Brazil
                                                                        iStar 2019 Program Chairs

</pre>