Data collection is based on conversations and interviews, surveys of individuals and companies, observations, documents, studies, expert opinions, statistics and publications in various print, electronic and onlinemedia.
In terms of the data collected, there are primary and secondary data, as well as quantitative and qualitative. As for primary data, it is data obtained through surveys and interviews and not yet published. Secondary data are different. They have been taken from publications and already statistically analyzed. Quantitative data is about numerical data from tables and statistics, and qualitative data is about descriptive data that describes the appearance in color, shape or smell.