2. Methodology
A survey was undertaken in such a way as to obtain both quantitative and qualitative data, seeking to analyze both internal and external opinions and experiences surrounding RAS application within the industry. Within the framework of new technologies gaining more importance, a wide range of communication channels were used to reach different interviewees. The idea was to conclude with an overall point of view of the questions presented, in order to obtain heterogeneous results and discussion. Two sides of the industry were distinguished: RAS system companies and producers; on the other hand researchers, consultants and manufacturers.
Therefore, two kinds of questionnaires were developed and used, as appropriate, for each of the interviewees; a RAS system questionnaire and a research questionnaire