Ebook Business Breakdown Structure For Construction Management And Web-Based Application System
It is important to standardize the administrative information for an effective performance of each construction management (CM) process. The business breakdown structure (BBS) for CM is one of the breakdown structures for classifying CM information generated from each CM process, and it could be a useful tool for the standardization of various administrative information for a construction project. The process of CM includes many specialized information for management of time, cost, and quality throughout the project life cycle. The BBS is a standardized code system to classify those CM tasks for efficient management of information generated from detailed CM processes.
A work breakdown structure (WBS) is a representative code system and most construction projects have a unique WBS code system, however the WBS is focused on the work operations. On the other hand, BBS code is classified and focused for the business information, such as time scheduling, cost management, quality management and resource management, that is generated through the whole CM duration of a project. For example, time scheduling tasks can be classified by critical path analysis, network diagramming and progress control process. BBS code classifies those detailed management information for each CM task as a standard breakdown structure so that project manager can manage and reuse those information through project duration. Accordingly, WBS code is necessary for managing construction operation information in the construction phase, on the other hand, BBS code is necessary for classifying business information for each CM task through the whole project duration. The organized BBS code in this study consists in total of ten classification tables including the classifications for form of information, management subjects, and eight tables by the CM function.
For the study, Masterformat (CSI/CSC, 1988) and Uniclass (CPIC, 1997) in the existing classification systems were examined to verify the adaptability of the classification codes. And the classification tables that can be applied to the practical processes of CM were organized on the basis of analysis with actual references (CMAA, 1993; CMAA, 1990; Fisk, 1980) including the regulations and guides, etc. Engineering information classification system (Chang, 2003) is the other related work that classifies information for engineering management using a facet and hierarchical structure from facility to resource levels. This research attempts to include engineering tasks code within a construction classification system, but it cannot cover the classified items for the detailed tasks for CM. Also it is difficult to classify task information by each CM process in current classification systems because they put the applicability of the classified items to the construction operations.
Finally, this study suggests a practical application method of the classification tables and a prototype of a web-based CM system to evaluate the adaptability of the organized CM BBS system. And this study proposes a new approach to link BBS and WBS codes with 4D CAD system in the future work section because 4D CAD is one of the representative tool for visualizing CM information.
An approach to link information classification system to 4D CAD was attempted in 4D/VR construction processes simulation research (Dawood, 2002). Information classification system is also applied to the lean enterprise web-based information system (LEWIS) to integrate various database for drawings, CAD file and specifications (Dawood, 2003). Prototype web-based construction project management (Chan, 2004) is another research related web-based CM system and the research presents a conceptual model of a metadata-based information system for data exchanges among web-based documents for CM. Those approaches for web-based CM are generally focused on the real time information exchanges and visualization of construction data, however, this research is focused on the classification of administrative information for each CM task and the application of the classification system to web-based CM tool linked with WBS.
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