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iStar 2023 : The 16th International i* Workshop (*EXTENDED DEADLINE*)


When Sep 3, 2023 - Sep 4, 2023
Where Hannover, Germany
Submission Deadline Jun 14, 2023
Notification Due Jul 14, 2023
Final Version Due Aug 4, 2023
Categories    istar   i*   requirements engineering   conceptual modeling

Call For Papers

** Overview **

The iStar workshop series is dedicated to the discussion of concepts, methods, techniques, tools, and applications associated with i* (iStar) and related goal modeling frameworks and approaches such as Tropos and GRL. The iStar’23 workshop aims to follow successful workshops in Trento (2002), London (2005), Recife (2008), Hammamet (2010), Trento (2011), Valencia (2013), Thessaloniki (2014), Ottawa (2015), Beijing (2016), Essen (2017), Tallinn (2018) and Salvador (2019), Zürich (2020 - online), St. John’s (2021 - online) and Hyderabad (2022 - online). The 16th edition of the Workshop will be co-located with the 31st Requirements Engineering Conference (RE'23) in Hannover, Germany.

As in previous editions, the objective of the workshop is to provide a unique opportunity for researchers in the area to exchange ideas, compare notes, promote interactions, and forge new collaborations. Expected outcomes include the communication of early results and new ideas to fellow researchers for feedback, the identification of the current problems and promising future research directions and the fostering of awareness, collaboration and interoperability in the area of tool development.

In addition to its regular scientific track, to be held on Monday, Sept. 4th 2023, this edition of the i* workshop will also feature a Celebratory Symposium in honor of the author of the i* requirements modeling language, prof. Eric Yu, on the occasion of his retirement. This special event, held on Sunday, Sept 3rd 2023, will include invited presentations illustrating the impact of his work from its origins to today, and discussing future prospects of the i* family of modeling frameworks.

The workshop will feature a keynote address by Prof. Alistair Sutcliffe, University of Manchester, UK.

** Focus and Topics of Interest **

The iStar workshop series is strongly focused on the research and practice of goal- and agent-oriented modeling of socio-technical systems as exemplified by the i* goal modeling language and the multitude of its descendants and related proposals. The workshop, which is open to the public, serves as an additional forum for the Requirements Engineering and Conceptual Modeling communities with the specific interest to exchange the latest ideas and results.

In line with the RE’23 conference theme “Redefining RE: Challenging RE Perceptions, Boundaries, and Topics”, this edition of the iStar workshop series also seeks to explore how iStar may be best applied to diverse contexts including, but not limited to, cyber-physical systems (CPS) and Artificial Intelligence (AI). For example, how can iStar dependencies better model complex contexts such as CPS? Can iStar aid in better explaining the rationale and output of AI systems? How can continuously evolving environments such as Machine Learning Operations (MLOps) benefit from goal-oriented iStar modeling?

Moreover, while iStar modeling is premised on a conception of social actors that are intentional, autonomous, rational, and strategic, there are many applications in today's extensively digitalized world that engage with the human social environment in ever richer, increasingly human-like ways. Many software and information systems today leverage human emotions and values, learn from human behavior, and even challenge human identity []. The workshop encourages contributions that further advance social modeling for RE in the face of today's complex social realities, building upon or challenging state-of-the-art iStar (-family) of modeling.

The following is a non-exhaustive list of topics in which application of i*-related modeling and analysis techniques is of interest to the workshop:
. The role of goal modeling in uncertainty analysis
. Adaptive requirements-driven systems
. Agent-oriented systems development
. Business intelligence and data analytics
. Business modeling
. Business process analysis and design, reengineering
. Business, service, and software ecosystems
. Enterprise, systems, and organizational architecture
. Evaluation, verification and validation
. Experience reports and case studies
. Evolution, adaptation, and system dynamics
. Formalizing or extending iStar 2.0
. i* modeling techniques and metamodels: i* modeling concepts, variations and extensions
. Knowledge management
. Law and regulatory compliance
. Mobile and cloud requirements engineering
. Model analysis and contextual reasoning
. Networking or integration with other modeling languages or techniques
. Novel applications of i*
. Ontological foundations
. Requirements engineering
. Scalability and uncertainty in modeling
. Security requirements engineering, privacy, and trust
. Socio-technical systems
. Software engineering processes and organizations
. Strategy modeling and business model innovation
. Tools, visualization, and interaction
. Variability and personalization
. Requirement analysis for AI systems
. Modeling and analysis of complex large-scale systems

** Workshop Format **

The objective of the workshop is to share knowledge, stimulate discussion and foster new lines of research and collaboration among different groups.

The program includes a keynote talk. If the schedule allows, we plan to include time for an interactive discussion in the program, in addition to the customary wrap-up session.

** Paper Submission instructions **

We solicit one type of contribution: regular papers (6 pages max) in the new CEUR-ART single column format, which can be viewed online at or downloaded from (include both LATEX and DOCX templates). We welcome technical papers, empirical evaluation and experience reports, position papers, and tool papers related to the i* framework, in English.

Submissions should provide an overview of the research objectives and describe contributions, including any related tools and evaluation experience. Contributions should outline ongoing and future work and provide key references. In particular, tool papers should include references to download information, documentation, and system features.

All submissions should be uploaded via EasyChair

All submissions will be peer-reviewed and accepted works will be published in the CEUR Workshop Proceedings Series.

** Organization **
Research Track Committee
. Sotirios Liaskos, York University, Canada
. Alejandro Mate, University of Alicante, Spain
. Roxana Portugal, UNSAAC, Peru

** Celebratory Track Committee
. Julio Leite, Federal University of Bahia, Brazil
. Gunter Mussbacher, McGill University, Canada
. Anna Perini, Foundazione Bruno Kesler, Italy

** Coordination
. Juan Trujillo, University of Alicante, Spain

** Steering Committee
The organization of the i* workshop series is guided by a Steering Committee formed by:
. Xavier Franch, Universitat Politècnica de Catalunya, Spain
. John Mylopoulos, University of Ottawa, Canada
. Eric Yu, University of Toronto, Canada

Related Resources

MoDRE 2019   9th International Workshop on Model-Driven Requirements Engineering (MoDRE)
T&D Modellierung 2024   Tools & Demo Track at the Modellierung 2024