Abstract
The aim of the present work is to analyze the difficulties encountered in interdisciplinary researches, and to present a perspective, according to the analysis, on the expected integration of knowledge obtained in individual disciplines. Communities publishing journals, rather than disciplines in general, were regarded as research units that have particular criteria of "validity" or "scientific soundness" of a research. Interdisciplinary research was classified into three types according to the characteristics of their output. Causes of communications problems arising in each type of research were then discussed in terms of differences in the validity criteria. Based on the conclusions of this analysis, perstective of knowledge integration is presented for each type of research.
