All sorts of technique for schedule progress management is being developed recently. In order to meet the demand, system development through various methodologies is proceeded in the whole areas of our society and this movement also can be found in the area of construction industry. In order to respond to such movement, in the area of construction industry we also intend to introduce development of various system. This study extracts users' requirement and conducts system modelling through Goal & Scenario (G & Sc) based analysis method, and contents of such modeling are partially applied to real-time schedule progress management based on Robot based Construction Automation (RCA) project. Through this study, we want to realize the rapid generation of estimated schedule information and to simulate and analyze actual schedule information by real-time. In addition, it attempts to present various system development in the area of construction industry not only in a specific area.