Since the 17th century, the society of Joseon dynasty belongs to a period of rapid transition in many fields. As the building is a result to be produced on the basis of a society and economy, the general transition in a society is to be reflected into a process of building construction. Especially, a study on the material supply system of economic base in a process of building construction is one of very important factors in an understanding or estimate of a building. On the premise, this paper is to examine the supply system of iron materials and the tools in the construction of the government managed buildings in the late of Joseon dynasty on a viewpoint of productivity. Construction reports and other documents in those days are examined for the study. Following conclusions have been reached through the study. 1) The general supply method of iron materials for a large-scale government construction was based on 'byulgong', that is, a kind of tribute. 2) Various methods were selected in the supply method of iron materials for government use in the late of Joseon dynasty. The priority order of choice in its government policy was put on an easiness of amount security, on a minimum of expenditure, and on an efficiency of construction execution. 3) The manufacturing technique of weaponry was used in the production method of iron materials and the tools for government use. The cooperation of the official, the army, and the merchant had improved the manufacturing technique of building construction.

History of architecture technology is the area where further studies are the most needed in Korean architecture history. This present study deals with architectural tools and woodworking of Baekje as a first step in exploration of Korean architecture technology history especially, that of Baekje dynasty. Based on the study of real artifacts and archeological sites showing the trace of tool use, function and forms of architectural tools were classified, characteristics of tools investigated, and woodworking technology analyzed. The main tools of analysis include Square, Black Inkpot, Hatchet, Saw, Chisel, Wood Hammer, Axe, and Plane. It is assumed that architectural technology during Baekje dynasty might have leapt into the new stage thanks to the regular use of iron tools. Compared to those of previous eras, iron tools of Baekje are more elaboratedly-designed and well-defined in function. In addition, wooden architectural tools from Baekje demonstrate the superiority of its woodworking technology Historical record also shows the fact that craftsman from Baekje participated in construction of temples of Shilla and Japan. Precise assessment of Baeje architecture technology is difficult because no Baekje wooden architecture is still remaining. The facts mentioned above, however, surely prove the excellence of architecture technology of Baekje.