「建築資訊模型」(Building Information Modeling，BIM)的議題在近幾年已成為國內營建業關注的焦點，尤其是中、大型營造廠紛紛成立BIM組織，投入資源以期掌握BIM技術，提昇企業的競爭力。由於BIM技術門檻較高，且要與現有作業需求及流程相互結合，必須經過時間的考驗，累積內部的經驗，成果才能逐漸呈現。
本研究目的主要是改善現有BIM作業效率。重新檢視現有BIM作業中較費時、費工的作業項目，透過「六標準差」方法步驟逐一探討進而找出效率提昇方案，並進行驗證改善方案的確效，提昇BIM作業效率。
本研究探討範圍是以施工端的BIM作業為主。從設計單位提供的傳統2D圖說，由營造廠自辦BIM作業進行3D模型的建置，由BIM工具(本研究採用Revit軟體)直接產出工地所需的介面整合及施工圖說。在改善方案中有關於自動化的需要將採用Revit支援的API程式開發工具(C#)及視覺化程式Dynamo二種工具。
依六標準差的探討步驟，從既有14個BIM完成專案的工時紀錄統計中找出主要的工作項目，進而聚焦探討範圍。主要有結構體建模錯誤的改善及外在回饋模型調整的作業效率二部份，再依序分析資料，透過內部團隊的的腦力激盪，將既有BIM建模流程再造，再進行再造方案的驗證；當然本研究的成果實現，程式開發扮演著重要的關鍵角色，經過多次測試及調整達到改善需求的目標。
最後本研究的成果經過驗證比較改善前後，並進行績效評估，確認改善方案的有效性，均有很好的效益提昇後，已成為BIM團隊採納的新作業方法，提昇BIM作業效率。

In the recent years, Building Information Modeling (BIM) has become a hot topic in Taiwan construction industry. In particular, many large and mid-sized construction companies established BIM teams and invested resource to improve internal BIM ability and enhance competitiveness on the market. However, adopting BIM technology needs to have a high-level skills and integrate with existing working progress. It is a long-term plan that increasing the in-house BIM experience to gain the benefits in return.
The purpose of this study is to improve the efficiency of BIM modeling. In order to lead a better modeling efficiency, this research reviewed the time-consuming tasks in the existing BIM framework and provided an improvement plan and verify the results through the method of six sigma.
The scope of the research is to focus on building construction from the perspective of contractors. In the existing BIM process, contractors create 3D BIM models based on the 2D CADs provided by design team. In construction stage, contractors usually use BIM models in interface integration and drawing production. The improvement plan will use the Revit API program development (C#) and the visual program – Dynamo to meet the need of automatic production.
Following the steps of six sigma, the main work items will be found from 14 completion projects to narrow down the scope of this study. There are two sections to be discussed. The first section is to identify the errors throughout the process of structural modeling and the second section is to revise the models from stakeholders’ comments. After that, the data will be analyzed in sequence through internal brainstorming to reengineer the existing BIM modeling process and verify the solutions. To achieve the goal of this research, program development plays a key role during several times of implementation and adjustment.
Finally, throughout being verified by the method of six sigma, the result of this research show a better efficiency in BIM process. Meanwhile, it has become a new framework adopted by BIM team to improve the efficiency.

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