The main questions of the present paper are: Is there any essential capacity in Islamic jurisprudence for system building? What would be the nature of such a system if jurisprudence is capable of building it? A comprehensive understanding of different aspects and dimensions of the phenomena and true, abstract and real subjects is one of the significant requirements of system building. Although in the course of its history, jurisprudence has not fully utilized this understanding, through delving into its concessive origins and the crucial fundamentals existing in its epistemological geometry, one can enumerate some processes and cases which are applicable in the process of system building, moving this discipline from the isolated domain of individual and socially limited concepts and statements to give social domain a proper place in this discipline. Ayatollah Seyed Mohammad Baqir Sadr is among scholars who was aware of this capacity of jurisprudence and hence offered some mechanisms as an evolutionary version in the process of classic individual inference (ijtihad), some of whose aspects are discussed in this paper.