Abstract
A definition of system architecture by systems engineering approach is an approach that clarify the relationship between a system of interest and external systems, define functions that a sys-tem of interest should include, and logically decompose system elements to define their rela-tionships. Introducing the definition of system architecture in the conceptual phase of a project will contribute to the execution of the project toward the realization of the ideal state. In this study, we will define the system architecture and propose to introduce the definition of the sys-tem architecture in the conceptual phase of a project, taking an intellectual integration project of a developed company as an example.
