• Title/Summary/Keyword: eBOM

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An Integrated Multi-BOM System for Product Data Management (제품정보관리를 위한 통합적 멀티BOM시스템)

  • Jung, So-Young;Kim, Bo-Hyun;Oh, Joseph;Baek, Jae-Yong;Choi, Hon-Zong;Lee, Sung-Jin
    • Korean Journal of Computational Design and Engineering
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    • v.17 no.3
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    • pp.216-223
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    • 2012
  • Bill of material (BOM), which structurally represents the relation among parts constructing a product, is usually created when enterprises start to develop a new product. And it is shown as various types of BOM according to business needs and usage such as eBOM (engineering BOM), gBOM (green BOM), mBOM (manufacturing BOM), pBOM (process BOM), etc. eBOM, generally called BOM and created in the design stage of the new product, includes the drawing information of parts in the view of product function. eBOM is extended to gBOM adding the material information of parts to cope with international regulations for environment. eBOM is transformed to mBOM, which includes manufacturing sequence of parts and adds some parts required to fabricate parts and to assemble the product. mBOM is also extended to pBOM adding the process information of each part and additional assembly processes. This study introduces the concept of multi-BOM covering eBOM, gBOM, mBOM and pBOM, and proposes an advanced way to manage product data using multi-BOM system. The multi-BOM system proposed is to manage their relations using transformation function of BOM and master information of all BOMs.

Implementation of an E-BOM Copy Method for an Order-specific Semiconductor Equipment (주문 생산형 반도체 장비를 위한 E-BOM 복제 방법의 구현)

  • Park, Dong-Seok;Yang, Jeong-Sam;You, Ki-Hyoun;Park, Beom
    • Korean Journal of Computational Design and Engineering
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    • v.13 no.4
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    • pp.273-285
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    • 2008
  • In this paper we propose an engineering bill of materials (E-BOM) copy method that can be utilized to manage the product information for each equipment during building a product lifecycle management (PLM) system in the order-specific semiconductor equipment manufacturer. The previous works studied on an E-BOM creation and management method for the mass manufacturing and production. The method is difficult to apply to an environment in which many engineering changes occur and the different specification to each equipment is required such as semiconductor equipments and facilities adopting built-to-order instead of built for inventory. Moreover the method is known to be the major drawback to deteriorate the design efficiency. Our E-BOM copy method enables users efficiently to manage the specification of a product and shortens the product development cycle. To implement the E-BOM copy method in the PLM environment, we developed the E-BOM copy system that automatically generates new parts and their numbers according to the numbering rule while copying the E-BOM from existing semiconductor equipments and then can apply the parts for reuse to new semiconductor equipments. This system can duplicate not only 3D CAD data but also technical documents.

eBOM, mBOM, processBOM structure in analyzing of automobile part industry (자동차 부품 현업 분석을 통한 설계 BOM, 생산 BOM, 공정 BOM 구조 설계)

  • Lee, Seung-Woo;Lee, Jai-Kyuung;Lee, Hwa-Ki
    • Journal of the Korea Safety Management & Science
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    • v.12 no.2
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    • pp.125-132
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    • 2010
  • In accordance with the trend for cooperation of related company, BOM (Bill of Materials) has become an important factor in the manufacturing of production. BOM manages a various basic information of design, production, and process and so on. Especially, automobile industries are related to many company, they build a cooperative system from the communication of information. In this study, we have analyzed a BOM structure of a well-used automobile part industry and proposed a structure of engineering BOM, manufacturing BOM, process BOM for cooperative environment. A proposed various BOM structure are flexible in responding to the situation of structure alternations for automobile part. And also they include in environment factors. It is expected that these BOM structure will be used to basic template in automobile part industry which could be loaded with cooperative hub-system.

Building and Applying Shipbuilding Ontology for BOM Data Interoperability in Heterogeneous Shipbuilding PLM Systems (이 기종 조선 PLM 시스템 간 BOM Data 교환을 위한 조선 온톨로지 Framework 구축)

  • Kim, Dae-Seok;Lee, Kyung-Ho;Lee, Jung-Min;Lee, Kwang;Kim, Jin-Ho
    • Korean Journal of Computational Design and Engineering
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    • v.16 no.3
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    • pp.197-206
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    • 2011
  • Shipbuilding is a complex industry which contains a lot of knowledge, technology, and utilities. Hence, the necessity of the PLM (Product Life-cycle Management) system which manages life-cycle information of marine product has been increased. So, many studies related to shipbuilding PLM have been preceded, and there are some cases to be built. To implement collaboration and concurrent engineering of ship designing and manufacturing, interoperability of product data in heterogeneous system is required. Also, sharing and reusing knowledge are important for innovation of business process and productivity of enterprises. Even though many studies related interoperability of product data are going on in varies domain, the application to shipbuilding is deficient. This paper proposes a methodology for management and interconnection of BOM data based on ontology in heterogeneous PLM system of shipbuilding. Using Prot$\'{e}$g$\'{e}$-OWL, we built simple domain ontology of shipbuilding industry, and then, we integrated product information of shipbuilding BOM which is represented with different ontologies. We verified possibility of integration of shipbuilding BOM in heterogeneous PLM, using ontology.

The Utility of Measuring Assimiliable Organic Carbon (AOC) as an Indicator of Biostability in Distribution Systems for Finished Water

  • Chang, Young-Cheol;Toyama, Tadashi;Jung, Kweon;Kikuchi, Shitaro
    • Journal of Environmental Health Sciences
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    • v.32 no.6
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    • pp.539-542
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    • 2006
  • The objective of this paper is to compare the applicability of assimilable organic carbon (AOC) or biodegradable dissolved organic carbon (BDOC) for quantifying biodegradable organic material (BOM) and bio-stability in distribution systems for a variety of finished waters. The study the data is derived from was part of an AWWARF and Tampa Bay Water tailored collaboration project to determine the effect of blending different waters on distribution system water quality. Seven different finished waters were produced from surface, ground, or brackish water on site and fed 18 independent pilot distribution systems (PDSs), either as single finished water or as a blend of several finished waters. AOC and BDOC have often been used as indicators of bacterial regrowth potential in distribution systems. In this study, AOC was the more useful assay of the two for the BOM concentrations observed in the PDSs. BDOC did not distinguish BOM while AOC did at the low BOM levels from many of the advanced treatments (e.g. RO, $O^3/BAC$). AOC in contrast allowed much more meaningful calculations of the consumption or production of AOC as the blends passed through the PDSs even for very low BOM blends. In addition, meaningful trends corresponding to changes in heterophic plate count (HPC) were observed for AOC but not for BDOC. Moreover, AOC stability was associated with waters produced from advanced membrane treatment.

Implementation of Spatial Downscaling Method Based on Gradient and Inverse Distance Squared (GIDS) for High-Resolution Numerical Weather Prediction Data (고해상도 수치예측자료 생산을 위한 경도-역거리 제곱법(GIDS) 기반의 공간 규모 상세화 기법 활용)

  • Yang, Ah-Ryeon;Oh, Su-Bin;Kim, Joowan;Lee, Seung-Woo;Kim, Chun-Ji;Park, Soohyun
    • Atmosphere
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    • v.31 no.2
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    • pp.185-198
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    • 2021
  • In this study, we examined a spatial downscaling method based on Gradient and Inverse Distance Squared (GIDS) weighting to produce high-resolution grid data from a numerical weather prediction model over Korean Peninsula with complex terrain. The GIDS is a simple and effective geostatistical downscaling method using horizontal distance gradients and an elevation. The predicted meteorological variables (e.g., temperature and 3-hr accumulated rainfall amount) from the Limited-area ENsemble prediction System (LENS; horizontal grid spacing of 3 km) are used for the GIDS to produce a higher horizontal resolution (1.5 km) data set. The obtained results were compared to those from the bilinear interpolation. The GIDS effectively produced high-resolution gridded data for temperature with the continuous spatial distribution and high dependence on topography. The results showed a better agreement with the observation by increasing a searching radius from 10 to 30 km. However, the GIDS showed relatively lower performance for the precipitation variable. Although the GIDS has a significant efficiency in producing a higher resolution gridded temperature data, it requires further study to be applied for rainfall events.

Web-based Visualization of Product Information (제품 정보의 Web-기반 시각화)

  • 서윤호;정덕호
    • Proceedings of the CALSEC Conference
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    • 1997.11a
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    • pp.133-141
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    • 1997
  • $\textbullet$ CE 구현을 위한 제 품 정보 공유 도구 개발 $\textbullet$ Web 상에서의 제품 정보 공유를 위한 VRML2.0 코드 자동 생성 시스템 개발 - CAD데이터의 동적인 3차원 형상 표현 - BOM의 제품 구성 표현 - 제품의 조립 순서와 방법의 표현(중략)

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The Weight Gain Effects of Sungjangjeungbo-tang (Ch$\acute{e}$ngzh$\check{a}$ngz$\bar{e}$ngb$\check{u}$-tang) on Thin Korean Preschool Children (한국의 마른 체형 소아에 대한 성장증보탕(成長增補湯)의 체중개선 효과)

  • Kim, Ki-Joon;Lee, Joon-Suk;Yoon, Ji-Hyun;Ryu, Bong-Ha;Paik, Hee-Young
    • The Journal of Internal Korean Medicine
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    • v.33 no.2
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    • pp.180-187
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    • 2012
  • Objectives : The aim of this study was to investigate weight gain effects of the Sungjangjeungbo-tang (Ch$\acute{e}$ngzh$\check{a}$ngz$\bar{e}$ngb$\check{u}$-tang) on thin Korean preschool children. Methods : Sungjangjeungbo-tang is composed of 9 herbs for treating indigestion. We analyzed 119 preschool children who visited Kim Kijoon Oriental Clinic BOM from Jan. 1, 2006 to Aug. 31, 2011 with three criteria: 1) 2~5yrs of age and BMI < 50th percentile on the baseline visit; 2) the child had taken the Sungjangjeungbo-tang for 1~3 month(s); and 3) the clinic had records of both height and weight on the baseline and at least once over 1~3 month(s). Results : Sungjangjeungbo-tang significantly improved BMI percentile in all groups. The changes in BMI percentile variations were larger in the 3 months group than in other groups, but not significantly. Gender, age and BMI on the baseline had no significant effects on the effectiveness of Sungjangjeungbo-tang. Conclusions : Sungjangjeungbo-tang positively affected on weight gain in thin Korean preschool children within 1~3 month(s) of treatment. However, additional studies on functional dyspepsia or the change of energy intake were needed to know the factors related to weight gains.