Joong-Min Kwak

Usability Improvement of BIM for Construction Projects Using Active BIM Functions

Most current BIM systems are focused on the visual information of work status in the design and construction stages. In a passive BIM system, 3D CAD tool can visualize the interference elements of design drawings, however, it cannot suggest a solution to solve the interference status. And 4D CAD tool in the construction stage can simulate the appearance of each activity by construction schedule, however, it cannot suggest an optimized schedule plan considering specified schedule condition of the project. Recently, many organizations need BIM solutions that can improve the work status beyond the level of simple visual information from BIM system. Active BIM system can provide the solutions to the project manager. This study suggests active BIM functions for the solutions and attempts to develop a 4D CAD engine to validate the usability of the functions.

A Study of Process Modeling Method for Construction Business Process Reengineering

The construction industry concentrates their efforts on construction information technology (IT) including construction CALS. However, the actual circumstances for construction IT focuses on building hardware and it neglects importance of business process reengineering (BPR) for construction tasks. A systematic process modeling method and a computerized model by process concept need for building construction BPR. This study develops a generalized BPR procedure for construction projects, and then suggests a new process modeling method for construction BPR that consists of object-related process model (ORPM). Finally, this study develops a web-based ORPM Builder (ORPMB) based on the ORPM methodology, and the applicability of the developed system is verified by a case study with practical construction processes.