GRL for Representing the Sustainability Reference Model

[Context] Goal modeling is an important method to get a grip on fuzzy concepts, to understand the relations between objectives, and to reason about trade-o↵s. One of the concepts that is currently discussed with often fuzzy arguments is sustainability. In previous work, we developed a reference model for sustainability in order to be able to break it down into more specific goals and relate those to activities and indicators. [Problem] Even though sustainability is now captured and di↵erentiated in a reference goal model, it has no standardized notation that would provide a means for formal reasoning. [Contribution] This paper proposes to use GRL to represent our sustainability reference goal model and shows first results. [Impact] By using the more wide-spread notation technique based on i* for the sustainability reference model, we hope to facilitate the discussion and application of the model. Integrating the model with a standard technique allows for a broader understanding of how to decompose and handle sustainability as a major objective for systems’ development, as well as a formalized basis for reasoning. We hope to engage in community discussion.