• 제목/요약/키워드: Engineering process

검색결과 46,006건 처리시간 0.06초

프로세스 중심의 동적 엔지니어링 웹서비스 지원 방법에 대한 연구 (A Study on Supporting Process-Centric Dynamic Engineering Web Services)

  • 이재열;윤장혁;이순재;김현;김광수
    • 한국CDE학회논문집
    • /
    • 제9권4호
    • /
    • pp.361-372
    • /
    • 2004
  • Collaborative and distributed engineering web services are emerging as a viable alternative to the traditional design and engineering process automation. Existing approaches have limitations in supporting long-running engineering transactions, automatic engineering process orchestration and choreography, synchronous and asynchronous conversation, and geometric abstraction for transmission and sharing. In this paper, we present a process-centric engineering web service methodology to overcome these limitations by utilizing BPEL-based (Business Process Execution Language) process templates and coordination broker-based conversation support. This paper discusses the synchronization of engineering web services which can be either peer-centric or process-centric to support long-running engineering transactions and conversation. The process orchestration and choreography broker works as a service dispatching and aggregation mediator for executing process templates, which enables the individual activity or the engineering process to dynamically select and invoke one of the alternative web services through the run-time process brokering. Further, the paper presents how to support collaboration over the running process using conversation policy.

Integrated engineering environment for the process FEED of offshore oil and gas production plants

  • Hwang, Ji-Hyun;Roh, Myung-Il;Lee, Kyu-Yeul
    • Ocean Systems Engineering
    • /
    • 제2권1호
    • /
    • pp.49-68
    • /
    • 2012
  • In this paper, an offshore process front end engineering design (FEED) method is systematically introduced and reviewed to enable efficient offshore oil and gas production plant engineering. An integrated process engineering environment is also presented for the topside systems of a liquefied natural gas floating production, storage, and offloading (LNG FPSO) unit, based on the concepts and procedures for the process FEED of general offshore production plants. Various activities of the general process FEED scheme are first summarized, and then the offshore process FEED method, which is applicable to all types of offshore oil and gas production plants, is presented. The integrated process engineering environment is presented according to the aforementioned FEED method. Finally, the offshore process FEED method is applied to the topside systems of an LNG FPSO in order to verify the validity and applicability of the FEED method.

Manufacturing process improvement of offshore plant: Process mining technique and case study

  • Shin, Sung-chul;Kim, Seon Yeob;Noh, Chun-Myoung;Lee, Soon-sup;Lee, Jae-chul
    • Ocean Systems Engineering
    • /
    • 제9권3호
    • /
    • pp.329-347
    • /
    • 2019
  • The shipbuilding industry is characterized by order production, and various processes are performed simultaneously in the construction of ships. Therefore, effective management of the production process and productivity improvement form important key factors in the industry. For decades, researchers and process managers have attempted to improve processes by using business process analysis (BPA). However, conventional BPA is time-consuming, expensive, and mainly based on subjective results generated by employees, which may not always correspond to the actual conditions. This paper proposes a method to improve the production process of offshore plant modules by analysing the process mining data obtained from the shipbuilding industry. Process mining uses information accumulated from the system-provided event logs to generate a process model and determine the values hidden within the process. The discovered process is visualized as a process model. Subsequently, alternatives are proposed by brainstorming problems (such as bottlenecks or idle time) in the process. The results of this study can aid in productivity improvement (idle time or bottleneck reduction in the production process) in conjunction with a six-sigma technique or ERP system. In future, it is necessary to study the standardization of the module production processes and development of the process monitoring system.

동시공학 구현을 위한 Web 기반의 공학 프로세서 지원 프레임워크 (The Web-Based Engineering Process Framework for Concurrent Engineering)

  • 김현;명재형;목경태
    • 한국CDE학회논문집
    • /
    • 제3권4호
    • /
    • pp.283-292
    • /
    • 1998
  • The engineering process including design, analysis/evaluation and manufacturing activities is becoming one of the key issues to embody a concurrent engineering concept. This paper proposes a framework to integrated the complicated engineering design and manufacturing processes under the concurrent engineering environment. The framework offers the following facilities: (1) to represent the complicated engineering process (2) to coordinate design activities and execute the process in a distributed environment (3) to support a communication among the related engineers. The engineering processes is depicted using process flow graphs that consist in tasks and the corresponding input and output data. The engineering activities in the defined processes can be executed in a distributed environment through process controller of the framework. Engineers can communicate to suggest their opinions and to exchange product information in the framework. We have conformed the CORBA standard to integrate various distributed engineering the and communicate among them, and used a Java to support the platform independent environment on the Internet. Since the proposed framework an be a formal approach to integrate the engineering processes by providing formalism, parallelism, reusability, and flexibility, it can be effectively applied to embody the concurrent engineering concept in a distributed environment.

  • PDF

통합 프로세스 엔지니어링을 위한 해양 프로세스 기본 설계 방법론 (Offshore Process FEED(Front End Engineering Design) Method for Integrated Process Engineering)

  • 황지현;노명일;차주환;이규열
    • 대한조선학회논문집
    • /
    • 제47권2호
    • /
    • pp.265-277
    • /
    • 2010
  • In this study, an offshore process FEED(Front End Engineering Design) method is systematically established to perform integrated process engineering for topsides systems of LNG FPSO(Floating, Production, Storage, and Off-loading unit) based on the concepts and procedures for the process FEED of general offshore production plants. First, various activities of the general process FEED engineering are summarized, and then the offshore process FEED method, which is suitable for application to all types of offshore oil and gas production plants, is proposed. Second, an integrated process engineering environment is built based on the proposed FEED method. Finally, the integrated process engineering environment is applied to topsides systems of an LNG FPSO in order to verify the validity and applicability of the proposed FEED method. As a result, it is shown that the proposed FEED method can be applied to the process FEED engineering of FPSOs and moreover will be able to contribute to perform successful offshore projects in the future.

공학 교육에서의 비판적 사고의 활용 방안 (How to Utilize Critical Thinking in Engineering Education)

  • 박상태
    • 공학교육연구
    • /
    • 제23권6호
    • /
    • pp.27-32
    • /
    • 2020
  • The aim of this paper is to explore various ways to utilize critical thinking in engineering education. To this end, this paper, in the light of the relationship between critical thinking and the program learning performance of ABEEK, reviews engineering design education, engineering ethics education, and engineering communication education, which are major areas where critical thinking can be utilized in engineering education. As a result, it was confirmed that critical thinking skills, especially the elements and criteria of critical thinking, can contribute to the creative problem-solving process in engineering design education, the rational decision-making process in engineering ethics education, and the effective communication process in engineering communication education.