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Omniclass coding & Activity Based Costing Mapping ERP "Chart of Accounts" to Building Information Modeling Software Using Omniclass Coding Structures and Activity Based Costing/Management- A CONTRACTOR'S perspective

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Paul D Giammalvo at SKEMA Business School
Paul D Giammalvo
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This paper explores the importance of developing standardized Work Breakdown Structures (WBS) and Cost Breakdown Structures (CBS) as the key to enabling the various Building Information Modeling (BIM) databases to be able to exchange data between the field (actual cost of work performed- ACWP or AC) the estimating databases (budgeted cost of work scheduled- BCWS or PV) and the ERP accounting and billing systems (budgeted cost of work performed- BCWP or EV) This research is based on an actual case study developed for a major Middle East contractor in 2018.
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BIM-BVBS integration with openBIM standards for automatic prefabrication of steel reinforcement
Article
  • May 2021
  • AUTOMAT CONSTR
Processing steel reinforcement is an on-site activity that includes cutting and bending, which are time-consuming and uneconomical. When moving toward the construction automation, off-site prefabrication is important with the aid of Building Information Modeling (BIM) and Industry Foundation Classes (IFC) which are utilized as a collaborative approach to facilitate the fabrication workflow and data interoperability. This paper presents the integration of BIM and steel fabrication machine codes (BVBS) with openBIM standards to interoperate the computerized design and prefabrication automation of steel reinforcement. The integration begins with the reference of Information Delivery Manual (IDM) which involves the identification of information requirement in the process map for identifying the necessary data exchange within the prefabrication process. Definition of IFC model views is conducted to ensure that the exchange of data meets the end user's needs and is implementable for software applications. Next, the process information model of steel reinforcement fabrication is established by connecting the IFC entities with relationships among the specific tasks. A new approach is developed to extend the IFC data schema with prefab-related entities. The proposed BIM-BVBS integration is demonstrated utilizing IFC viewers and visual programming tools (Dynamo) in illustrative examples, the results of which reveal that prefab-related entities and attributes in IFC-based BIM models can be extracted efficiently to cater to the BVBS data transformation toward automatic prefabrication.
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MScPM, MRICS, is Senior Technical Advisor (Project Management) to PT Mitratata Citragraha. (PTMC)
  • Paul D Dr
  • Giammalvo
Dr. Paul D. Giammalvo, CDT, CCE (#1240), MScPM, MRICS, is Senior Technical Advisor (Project Management) to PT Mitratata Citragraha. (PTMC), Jakarta, Indonesia. www.build-project-management-competency.com.