This paper reports the development of mobile computing in construction management. The paper focuses on the methodology of the development based on EUC. First, the paper indicates the effectiveness of EUC in construction projects. The authors introduce design pattern of user interface and the use of UML for EUC. Secondly, the paper describes the process of development of PDA Inspection Support System for Finish Work with UML. User interface is an interface between users and computer-aided system, and can be one between users and system developers. In the developed system, user interfaces are classified to some design patterns with the use of control function such as list, option button and scroll bar. End users can customize and combine them freely. As a result, they can make their own flowcharts. System developers can build computer-aided systems with them easily and quickly. The paper also shows the effectiveness of the system. Finally, the paper summarizes this methodology and concludes the effectiveness.