By analyzing the term awareness with regard to ISS literature, it became evident that there exists no one universal definition. This might largely be due to ISA’s informal and socially constructed nature (Tsohou et al. 2008). Within the 131 analyzed articles, 21 more or less distinctive definitions of the term ISA are identified. It is noticeable that the number of articles clearly and explicitly defining ISA is surprisingly few. The majority of literature does not define the topic at all, although it is the main object of its research. However, further 17 studies are found that define ISA explicitly by following one of the 21 definitions.