7.70. At least in some countries, using border surveys to collect additional mode 4 information may involve certain challenges, such as the cost of the survey and the size of the sample, which may need to be enlarged to ensure the representativeness of small sets of the population. In addition, the interview duration, and consequently the survey’s total cost, may increase or the survey form may become more complex or lengthy. Compilers must not forget that border survey managers are already pressed by other users, in particular tourism sector users, who are willing to expand the questionnaire for tourism-related aspects. That is why it is important that there be strong cooperation between the potential users of such data, for example, those interested in tourism, BOP or trade in services, to identify the synergies and priorities according to the specific information needs of the economy.
Country experience: Italy: border sample survey (Chapter 7)
Country experience: France: characteristics of international visitors and tourism trips (Chapter 7)
Back to F. Border surveys
 The scope of that business and professional category is described in para. 3.17 of IRTS 2008: “business and professional”. That category includes the activities of the self-employed and employees as long as they do not correspond to an implicit or explicit employer-employee relationship with a resident producer in the country or place visited, or those of investors, businessmen, etc. It also includes, for example, attending meetings, conferences or congresses, trade fairs and exhibitions; giving lectures, concerts, shows and plays; promoting, purchasing, selling or buying goods or services on behalf of non-resident producers (of the country or place visited); participating in foreign government missions as diplomatic, military or international organization personnel, except when stationed on duty in the country visited; participating in non-governmental organization missions; participating in scientific or academic research; programming tourism travel, contracting accommodation and transport services and working as guides or other tourism professionals for non-resident agencies (of the country or place visited); participating in professional sports activities; attending formal or informal on-the-job training courses; and being part of crews on a private mode of transport (corporate jet, yacht, etc.).
 Care should be taken about the use of the non-specific term "meeting", since a meeting can be with a specific client to deliver a particular service, and would be of interest under mode 4.
 See chapter 16 for more information. The Statistics Division website provides information on existing border surveys and compilers are advised to familiarize themselves with the questions relevant for mode 4.