<p>Tema istraživanja je proučavanje dijagrama kao alata i njegove epistemolo&scaron;ke uloge u procesu arhitektonskog projektovanja. U savremenoj se arhitektonskoj teoriji i praksi, kao jedan od najzastupljenijih alata u procesu projektovanja, koristi dijagram. Dijagramom je kao analitičkim i stvaralačkim alatom poslednjih dvadesetak godina dat značajan doprinos razvoju istraživačkog projektovanja. Iz tog razloga, ovaj rad predstavlja prilog metodologiji projektovanja dijagramima kao obliku istraživanja kojim se dolazi do novih saznanja u kreativnom činu.</p> / <p>The main topic of the research is the analysis of a diagram as a tool, and its epistemological role in the process of architectural design. In contemporary architectural theory and practice diagram is one of the most frequently used tools in a design process. As an analytical and designing tool, diagram has significantly contributed to the development of exploratory design in the past twenty years. For this reason, this paper is a contribution to the methodology of a diagram-based design as a form of a research that leads to new findings in an act of creation.</p>