KNOWLEDGE SHARING AND CREATING THROUGH ASYNCHRONOUS DISTRIBUTED SYSTEM BASED ON WEB TECHNOLOGY Bing SHAO Bing SHAO Seigo OGATA Seigo OGATA Ichiro KOBAYASHI Ichiro KOBAYASHI Yuji HOSHINO Yuji HOSHINO Kumamoto University, Kumamoto City, JAPAN

Purpose of our research Improve the competitive ability of architecture, engineering and construction industry by using information technology.Improve the competitive ability of architecture, engineering and construction industry by using information technology. Strengthening the relationship between academy and construction company.Strengthening the relationship between academy and construction company.

1. Introduction 4D-CICC4D-CICC CG-CICC (Computer Graphics supported Collaborative Integrated Communication for Construction) CG-CICC (Computer Graphics supported Collaborative Integrated Communication for Construction) Scheduling support subsystem

2. Theory of knowledge creating Authors: Ikujiro NONAKA Hirotaka TAKEUCHI

2. Theory of knowledge creating Knowledge 1. Explicit knowledge: Explicit knowledge may be described in formal language, can be transmitted from one to anther easily. Explicit knowledge may be described in formal language, can be transmitted from one to anther easily. 2. Tacit knowledge: Tacit knowledge cannot be described in formal language, is difficult to be transmitted from one to anther easily. Typically refer to ability. Tacit knowledge cannot be described in formal language, is difficult to be transmitted from one to anther easily. Typically refer to ability.

2. Theory of knowledge creating Explicit CombinationInternalization From Tacit To Socialization Externalization Tacit Explicit

3. Outline of 4D-CICC: CG-CICC Client’s Office (Ashikita) (Ashikita) Construction Site Company A (Tokyo) Company B (Osaka) Company C (Kumamoto) Kumamoto University Community Local Community Local WorldWideWeb Site… Site…

3. The Information integrated in CG-CICC : CAD drawing

3. The Information integrated in CG-CICC : CG animation Frame Accurate Animation (FAA)

3. The Information integrated in CG-CICC : CG animation Real Time Animation (RTA)

3. Other information integrated in CG-CICC BBS Information PIF Information (Virtual Name Card) Photograph Information Document (PDF file)

3. Analysis of construction process PlanPlanDoDoCheckCheck ActionAction ScheduleManagementScheduleManagement ActualConstructionActualConstruction Simulation & Examination PlanPlanDoDoCheckCheckActionAction Traditional PDCA cycle Computer simulating system

3. The structure of 4G-CICC CG-CICC Consensus making Visualizer subsystem Optimizer subsystem Discussion Scheduling support system

3. 4D-CICC is the Knowledge-Creating process Discussion Optimizersubsystem Consensusmaking Visualizersubsystem Socialization Combination Externalization Internalization

4. Requirements of 4D-CICC Consensus making Consensus making Visualizer subsystem Optimizer subsystem Discussion BBS System MS-Project98 Superscape VRT

Consensus making Visualizer subsystem Optimizer subsystem Discussion 4. Requirements of 4D-CICC Template

(d) Temporary template (c) Constructive template Completion1 0 Time 1 t1t1t1t1 t2t2t2t2 (b) Destructive template Completion1 0 Time 1 (a) Permanent template Completion 1 0 Time 1 t’ 1 t’ 2 t1t1t1t1 t2t2t2t2 Completion 1 0 Time 1 t1t1t1t1 t2t2t2t2

5. Pilot application—The homepage of Sashiki Bridge

5. Pilot application—Sashiki Bridge

6. Conclusion 4D-CICC is a new method to improve the construction engineering using computer technology, concretely the CG (computer graphics) and VR (visual reality) technology.4D-CICC is a new method to improve the construction engineering using computer technology, concretely the CG (computer graphics) and VR (visual reality) technology. 4D-CICC can also be called 4D-CAD. But it prefers focusing on the construction work. So you can call it 4D- CAD or 4D-CAW (Computer Aided Work).4D-CICC can also be called 4D-CAD. But it prefers focusing on the construction work. So you can call it 4D- CAD or 4D-CAW (Computer Aided Work). The process of 4D-CICC is also the process of knowledge creation. Using this system, distributed people can get new ideas or designs asynchronously.The process of 4D-CICC is also the process of knowledge creation. Using this system, distributed people can get new ideas or designs asynchronously. We have used 4D-CICC system in some construction sites successfully, such as Sashiki-Bridge construction project.We have used 4D-CICC system in some construction sites successfully, such as Sashiki-Bridge construction project.