iStar 2.0 Language Guide

iStar 2.0 Language Guide

Fabiano Dalpiaz Utrecht University, The Netherlands    Xavier Franch Universitat Politècnica de Catalunya, Spain    and Jennifer Horkoff City University London, United Kingdom,,
Endorsers: Okhaide Akhigbe, Fatma Başak Aydemir, Juan Pablo Carvallo, Jaelson Castro, Luiz Marcio Cysneiros, Sepideh Ghanavati, Alicia Grubb, Giancarlo Guizzardi, Renata Guizzardi, Matthias Jarke, Alexei Lapouchnian, Tong Li, Lin Liu, Lidia López, Alejandro Maté, John Mylopoulos, Soroosh Nalchigar, Elda Paja, Angelo Susi, Juan Carlos Trujillo Mondéjar, Eric Yu, Jelena Zdravkovic.

The i* modeling language was introduced to fill the gap in the spectrum of conceptual modeling languages, focusing on the intentional (why?), social (who?), and strategic (how? how else?) dimensions. i* has been applied in many areas, e.g., healthcare, security analysis, eCommerce. Although i* has seen much academic application, the diversity of extensions and variations can make it difficult for novices to learn and use it in a consistent way. This document introduces the iStar 2.0 core language, evolving the basic concepts of i* into a consistent and clear set of core concepts, upon which to build future work and to base goal-oriented teaching materials. This document was built from a set of discussions and input from various members of the i* community. It is our intention to revisit, update and expand the document after collecting examples and concrete experiences with iStar 2.0.

Version History

Version Date Implemented Changes
3 June 17, 2016 New integrity rules: at most one actor link between a pair of actors; contribution and qualification cannot connect the same two elements.
2 June 3, 2016 Fixed typos in the original version
1 May 26, 2016 -
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