This article focuses on contemporary problems of definition and delineations industries and industry aggregations. The research results point out that there are different industry structures which are covering tourism, accommodation and restaurant services sector. For these multifaceted industries the identifiable attributes that contribute to a formation of the industry structure are strong varied in their importance depending on an across national locations, product mix and target market segments. In the article the main conceptual principles of forming industry groups are analyzed and represented in the form of a data model (Methodological framework). Using of this model could better explain how conceptual principles can be used to forming industry groups or adapted for national purposes. The research results shows that the basis for grouping industries and inter-industry groups is the integration and agglomeration of production units by the nature of goods produced and services provided, taking into account the common features and relationships with sources of demand and markets for products. At the present stage of development the highest-level categories reflect the conceptual division of the economy into industries. The researches result shows that there is a change of the industries structure, through appearing new industries. It is suggested to provide the strictly and narrowly definition of new economic industries and industries agglomerations.
