• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.20 no.2
• /
• pp.773-784
• /
• 2019

With the recent development of 4th industrial revolution technology, BIM information systems are spreading to civil engineering fields as a link to this technology. Accordingly, the Land, Infrastructure and Transport Ministry is announcing a technical policy to introduce the BIM information system into the construction sector from 2020. Usually, SOC-related facilities are complex, making it difficult to implement BIM without a standards framework. To overcome these problems, it is urgent to develop a BIM standard classification system. In this study, the BIM property classification system was developed to link the previously developed object classification system by analyzing domestic and foreign prior studies and working standards. This includes property information of businesses, facilities, parts of facilities and components that correspond to the level of object composition in the road and river sectors. It also suggested ways to apply expansion to various SOC areas and to organize spatial information by facility. The results of this study were applied to road facilities to verify the possibility of information building. The development of the BIM Standards Classification System through this R&D will contribute to the development of construction IT by providing conditions for convenient modeling and information system.

• Journal of Korean Library and Information Science Society
• /
• v.45 no.1
• /
• pp.103-123
• /
• 2014

This study investigated general problems concerning the tourism field in the KDC 6th edition based comparative analysis academic characteristics and classification system, and suggested on some ideas for the improvements of them. Results of the study are summarized as follows. First, academic field of tourism is generally divided into a general tourism, tourists, tourism attraction, and tourism media, but classification system of tourism is limited to parts of tourism attraction and a general tourism. Tourism attraction and tourism media are dispersed among the subject. Second, I analyzed on tourism from the collection database at the National Library of Korea. Based on analysis of the data. the keyword frequency of tourism management, type, development, psychology, industry, and convention etc. was relatively high. Third, modified classification of items was basically performed through the academic characteristics of the tourism and the keyword analysis, and maintaining the existing KDC classification system caused less confusion as much as possible. Also, based on this matter was added to the relative indexes.

• Journal of the Korean Institute of Landscape Architecture
• /
• v.51 no.2
• /
• pp.103-119
• /
• 2023

Since the Korean government has decided to apply the policy of BIM (Building Information Modeling) to the entire construction industry, it has experienced a positive trend in adoption and utilization. BIM can reduce workloads by building model objects into libraries that conform to standards and enable consistent quality, data integrity, and compatibility. In the domestic architecture, civil engineering, and the overseas landscape architecture sectors, many BIM library standardization studies have been conducted, and guidelines have been established based on them. Currently, basic research and attempts to introduce BIM are being made in Korean landscape architecture field, but the diffusion has been delayed due to difficulties in application. This can be addressed by enhancing the efficiency of BIM work using standardized libraries. Therefore, this study aims to provide a starting point for discussions and present a classification system for objects and attribute information that can be referred to when creating landscape libraries in practice. The standardization of landscape BIM library was explored from two directions: object classification and attribute information items. First, the Korean construction information classification system, product inventory classification system, landscape design and construction standards, and BIM object classification of the NLA (Norwegian Association of Landscape Architects) were referred to classify landscape objects. As a result, the objects were divided into 12 subcategories, including 'trees', 'shrubs', 'ground cover and others', 'outdoor installation', 'outdoor lighting facility', 'stairs and ramp', 'outdoor wall', 'outdoor structure', 'pavement', 'curb', 'irrigation', and 'drainage' under five major categories: 'landscape plant', 'landscape facility', 'landscape structure', 'landscape pavement', and 'irrigation and drainage'. Next, the attribute information for the objects was extracted and structured. To do this, the common attribute information items of the KBIMS (Korean BIM Standard) were included, and the object attribute information items that vary according to the type of objects were included by referring to the PDT (Product Data Template) of the LI (UK Landscape Institute). As a result, the common attributes included information on 'identification', 'distribution', 'classification', and 'manufacture and supply' information, while the object attributes included information on 'naming', 'specifications', 'installation or construction', 'performance', 'sustainability', and 'operations and maintenance'. The significance of this study lies in establishing the foundation for the introduction of landscape BIM through the standardization of library objects, which will enhance the efficiency of modeling tasks and improve the data consistency of BIM models across various disciplines in the construction industry.

• Journal of the Computational Structural Engineering Institute of Korea
• /
• v.36 no.6
• /
• pp.381-389
• /
• 2023

One of the crucial components in building information modeling (BIM) is data. To systematically manage these data, various research studies have focused on the creation of object breakdown structures and property sets. Specifically, crucial data for managing programs and payments involves work breakdown structures (WBSs) and cost breakdown structures (CBSs), which are indispensable for mapping BIM objects. Achieving this requires disassembling CBS quantities based on 3D objects and WBS. However, this task is highly tedious owing to the large volume of CBS and divergent coding practices employed by different organizations. Manual processes, such as those based on Excel, become nearly impossible for such extensive tasks. In response to the challenge of computing quantities that are difficult to derive from BIM objects, this study presents methods for disassembling length-based quantities, incorporating significant portions of the bill of quantities (BOQs). The proposed approach recommends suitable CBS by leveraging the accumulated history of WBS-CBS mapping databases. Additionally, it establishes a unified CBS code, facilitating the effective operation of CBS databases.

• Proceedings of the Korean Information Science Society Conference
• /
• 1999.10a
• /
• pp.120-122
• /
• 1999

World Wide Web은 하이퍼미디어라는 뛰어난 사용자 인터페이스 기능을 제공함으로써 인터넷을 대중화 시켰고, 전자상거래라는 인터넷의 상업화도 가능하게 되었다. 이와 같은 전자상거래에서 필수적인 기술 중의 하나는 사용자가 원하는 상품의 카탈로그를 쉽고 빠르게 찾는 것이다. 본 논문의 목적은 전자 카탈로그를 정의하고 질의하는 모델을 제안하여 전자 카탈로그 시스템을 보다 쉽게 구축하고 유지하며 사용자의 요구사항을 만족하는 상품에 대한 카탈로그를 보다 쉽게 검색할 수 있는 방법을 제공하는 것이다. 본 모델의 주된 아이디어는 상품에 대한 정보를 표현하는 기존의 카탈로그와 계층적 검색을 위해 존재하는 분류체계를 통합하여 하나의 객체로 정의하고 그 객체에 대한 질의 언어를 정의함으로써 기존의 카탈로그에 대한 개념을 확장하여 전자 카탈로그 시스템 전반에 관한 검색을 용이하도록 하는 것이다. 확장된 카탈로그는 하나의 객체로 정의되기 때문에 질의에 의해 전체를 필터링해서 일부분만을 보여주거나, 사용자가 원하는 형태로 재구성하는 것이 가능하게 된다. 이를 위해 본 모델에서는 상품에 대한 정보를 그래프 형태로 정의하고 그들을 계층적으로 분류하는 분류 체계에 대해서 설명한다. 그리고 확장된 카탈로그를 각 상품과 카테고리를 노드로 한 그래프 형태로 정의하고 그에 대한 질의어를 제안한다.

• Journal of the Computational Structural Engineering Institute of Korea
• /
• v.36 no.3
• /
• pp.147-154
• /
• 2023

In the case of river facilities, the management of this information differs depending on national and regional rivers, therefore, there is no integrated management in place. There is concern about the loss of facility information owing to the insufficient accumulation of information during their design and construction stages. Additionally, as a result, the utilization level of facility information during the maintenance and operation stages is insufficient. To ensure effective maintenance and operation of river facilities, it is necessary to secure data consistency and increase efficiency by organizing facility information according to a standardized classification system. This study proposes a strategy for implementing the BIM standard classification system in the river sector, considering facility characteristics. The goal is to introduce a BIM information model for 3D-based river facilities, and enable efficient maintenance and operation conversion.

• Journal of the Computational Structural Engineering Institute of Korea
• /
• v.33 no.2
• /
• pp.73-79
• /
• 2020

Building Information Modeling (BIM) tools have not only increased the use of technology in the design process, but also increased the need for more information standard systems. The object classification system consists of 327 types of construction results obtained from 25 kinds of facilities, 174 types of parts, and 207 types of construction parts. In the previous study, the property classification system was developed into 4 major classifications, 13 middle classifications, 58 small classifications (category), and 333 attribution information of roads and rivers. It is extremely difficult to input the property information according to such extensive object classification. In addition, the development of external applications such as Revit plug-ins has created a need to automate specific and repetitive tasks. Therefore, following the BIM property classification system, an attribute input program was implemented for the system to enhance the productivity and convenience of the BIM users.

• Proceedings of the Korean Institute Of Construction Engineering and Management
• /
• 2008.11a
• /
• pp.321-325
• /
• 2008

3D and BIM technology are presumed to be used more and more in the construction industry. The scope of this paper arose from a general wondering of how the constructor in general can benefit from the use of 3D models. Presented herewith is the first application of BIM in Korea to a actual bridge construction site located in Cheongpoong in Chooncheongbook-Do. This paper tries to integrate design, cost and schedule under location-based conditions with industry-specific solution for 3D modeling. 292 activities constitute the cable-stayed bridge of 442m long with a main span of 327m long. Integration of 3D model, cost and schedule is shown by comparing the measurements of works at a specific time by use of 2 different construction sequencing scenarios and cost breakdown structures.

• Korean Journal of Construction Engineering and Management
• /
• v.14 no.3
• /
• pp.88-96
• /
• 2013

Recent proliferation of building information modeling (BIM) has actively stimulated integrated utilization of geometric (graphic) and non-geometric (non-graphic) data. Nevertheless, physically and logically, linking and maintaining these two different types of data in an integrated manner requires enormous overhead efforts for practical implementation. In order to address this problem, this paper proposes a concept and structure of the object breakdown structure (OBS) that facilitates advanced BIM implementations in an automated and effective manner. Proposed OBS numbering system has secure rules for organizing graphic objects in full considerations of effectively integrating with non-geometric data (e.g. cost and schedule). It also removes repetitive linking process caused by design changes or modifications. The result of applying this concept to a housing project revealed that only 120 definitions controled over 6,000 graphic objects for full integration with cost and schedule functions.

• Proceedings of the Korean Information Science Society Conference
• /
• 1998.10b
• /
• pp.262-264
• /
• 1998

이미지 데이터베이스를 구성하여 사용자가 원하는 정보를 추출하는 의미 기반 검색을 지원하기 위해서는 이미지 내용에 관한 의미 정보들이 데이터 모델로 구조화되어야 한다. 본 논문에서는 다양한 정적 이미지 내용 정보들을 분류하고 그를 체계적으로 표현하기 위한 이미지 데이터 모델을 소개한다. 특히 본 이미지 데이터 모델은 그래프 이론을 이용하여 이미지내에 포함된 시각 객체들의 내용 정보를 표현하고 객체들간의 의미 관계를 정의한다. 이는 이미지 내용에 대한 정확한 정보 표현과 질의에 대한 이미지 검색 효율을 향상시킬 수 있으며 객체들간의 의미 관계를 이용한 질의와 검색을 가능하게 한다.