Authoring tools are a crucial component in the practice and research of interactive digital narrative design, yet no recent meta-analysis or mapping of such tools exists that would make it possible to comparatively study their defining qualities and characteristics and their effects on the artefacts produced with them. As a first step towards this goal, we created an online resource [1] in which we surveyed and classified over 300 tools. This paper lays out our proposed categorisation and description framework for IDN authoring tools. After exploring our definition of authoring tools and research methodology, we describe 9 categories and 38 descriptors for tool analysis and comparison. We conclude with a sample analysis of Twine [2].
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