Advice on the analysis of consumer buying habits and needs provided with the help of quality and quantity-related data; Business research; consumer response analysis; compilation of information into computer databases; compilation of statistics; provision of statistical information; systemization of information into computer databases; statistical evaluation of marketing data; statistical analysis and reporting; cost price analysis; cost-benefit analysis; providing user reviews for commercial or advertising purposes related to costs; data management; data processing; collection of data in computer databases; data search in computer files for others; opinion polling; providing business information; providing user rankings for commercial or advertising purposes; providing user reviews for commercial or advertising purposes; updating and maintenance of data in computer databases; market surveys for companies; marketing studies; marketing research; marketing studies; interviewing for market study purposes, conducting of market surveys and surveys in the field of business; conducting market surveys; conducting online market surveys; preparation of business surveys; preparation of marketing surveys; market survey analysis; market survey studies; gathering, processing, analyzing and disseminating data, statistics and research regarding air transport and air travel, and customer experiences thereof; conducting surveys regarding customer experiences of air transport and air travel and disseminating the results to members of the air transport and air travel industry, this service being for commercial purposes; conducting and coordinating research regarding customer experiences of air transport and air travel, this service being for commercial purposes; business assistance, management and administrative services provided to members of trade associations of the air transport and air travel industry.;