ER '02 Proceedings of the 21st International Conference on Conceptual Modeling
Modelling strategic relationships for process reengineering
Modelling strategic relationships for process reengineering
Tropos: An Agent-Oriented Software Development Methodology
Autonomous Agents and Multi-Agent Systems
REDEPEND: Extending i* Modelling into Requirements Processes
RE '06 Proceedings of the 14th IEEE International Requirements Engineering Conference
Reflective Analysis of the Syntax and Semantics of the i* Framework
ER '08 Proceedings of the ER 2008 Workshops (CMLSA, ECDM, FP-UML, M2AS, RIGiM, SeCoGIS, WISM) on Advances in Conceptual Modeling: Challenges and Opportunities
A Lightweight GRL Profile for i* Modeling
ER '09 Proceedings of the ER 2009 Workshops (CoMoL, ETheCoM, FP-UML, MOST-ONISW, QoIS, RIGiM, SeCoGIS) on Advances in Conceptual Modeling - Challenging Perspectives
Integrating security and systems engineering: towards the modelling of secure information systems
CAiSE'03 Proceedings of the 15th international conference on Advanced information systems engineering
Visual syntax does matter: improving the cognitive effectiveness of the i* visual notation
Requirements Engineering - RE'09 Special Issue; Guest Editor:Kevin T Ryan
Evaluating goal models within the goal-oriented requirement language
International Journal of Intelligent Systems - Goal-driven Requirements Engineering
Towards interoperability of i* models using iStarML
Computer Standards & Interfaces
Finding solutions in goal models: an interactive backward reasoning approach
ER'10 Proceedings of the 29th international conference on Conceptual modeling
ER'10 Proceedings of the 29th international conference on Conceptual modeling
Social Modeling for Requirements Engineering
Social Modeling for Requirements Engineering
A metamodelling approach for i* model translations
CAiSE'11 Proceedings of the 23rd international conference on Advanced information systems engineering
Specialization in i* strategic rationale diagrams
ER'12 Proceedings of the 31st international conference on Conceptual Modeling
Specialization in i* strategic rationale diagrams
ER'12 Proceedings of the 31st international conference on Conceptual Modeling
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The i* (i-star) framework is one of the most widely adopted modelling approaches by several communities (business modelling, requirements engineering, ...). Probably due to its highly strategic nature, the definition of the modelling language offered by the framework does not make explicit the full behaviour of some basic constructs, leaving them thus open to several interpretations. This looseness may not be important in some contexts, even it may be beneficial since it leaves room for researchers to customize the framework to their needs. However, it becomes an obstacle in other situations, e.g., model interoperability and model-driven development. In this paper we identify ambiguities and silences in the i* language definition in a systematic manner, and then we propose an interpretation to deal with them. In some cases, the proposal may include the addition of some annotation into some language construct. The result is a formal definition taking the form of a UML conceptual data diagram (a metamodel) with several important integrity constraints.