Addressing symbol redundancy representations in IStar extensions

Enyo Gonçalves, Camilo Almendra, João Araujo, Jaelson Castro, Miguel Goulão

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)
20 Downloads (Pure)


[context] iStar has been extended to include constructs of a great number of application areas by adding new symbols. We analyzed the existing iStar extensions in a Systematic Literature Review and identified the occurrence of symbol redundancy (constructs represented by two or more symbols) among the existing constructs. The occurrence of symbol redundancy can hinder the usage of these constructs. [objective] We are interested in defining a prioritization of the preferences of these symbols. Thus, we performed a survey with novices to analyze their preferences about the representations. [results] The 83 participants expressed their preferences concerning the most adequate graphical representation for each construct with symbol redundancy. We presented a ranking of the symbols for each concept with symbol redundancy. These results can be useful to extenders to choose the symbols of these constructs when reusing the extensions which propose them.

Original languageEnglish
JournalCEUR Workshop Proceedings
Publication statusPublished - 2019
Event12th International i* Workshop, iStar 2019 - Salvador, Brazil
Duration: 4 Nov 20194 Nov 2019


  • IStar extensions
  • Prioritization
  • Survey
  • Symbol redundancy


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