This chapter contains analysis of questionnaires data base which was built by selecting one of several qualitative characteristics formulated with relation to each of the issues included in the questionnaire. The subject of examination is a set of multi- profile elements. In the initial part of the chapter, a method of division of such a set of objects into subsets including similar objects has been presented. Similarity of the objects is the basis for describing a function of distance between them. Then, by analyzing values of distance function, the entire set is divided into clusters. Research premise is executed in two sections. By calculating the distance between characteristics of analyzed phenomenon, which are represented by items in the questionnaire, a group of similar features - or lack of relationship between features - are determined. Second facet of the analysis consists in determining the distances of multi-profile objects from fixed standards, and division of the set of objects into homogenous layers. In paragraphs that follow, results of research conducted using the above method, and concerning changes in economic situation of Polish construction industry in 1993 - 1997 are shown. On the basis of the questionnaire data from the Institute of Economic Development and obtained from construction enterprises, mutual relationships between measures of economic situation have been examined. Moreover, changes in economic situation of construction enterprises in comparison to their distance from standards of economic situation have been analyzed, both in the entire population of enterprises and in two sectors of construction industry: private and public.