• Title/Summary/Keyword: Integrated Process Model

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Integration of Process Planning and Operations Scheduling by Process Net Model and Genetic Algorithm (공정 네트 모델과 유전 알고리즘에 의한 공정 계획과 일정 계획의 통합)

  • 박지형;강민형;노형민
    • Journal of the Korean Society for Precision Engineering
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    • v.15 no.3
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    • pp.82-87
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    • 1998
  • In order to provide a manufacturing system with efficiency and flexibility to cope with the changes in shop floor status, the integration of process planning and operations scheduling is required. In this paper, an integrated system of process planning and operations scheduling based on the concept of process net model and genetic algorithm is suggested. The process net model includes the alternative process plans. The integrated system is applied for prismatic parts.

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A Process-net based System for the Integration of Process Planning and Operation Scheduling (동정 네트 모델에 의한 공정 계획과 일정 계획의 통합)

  • 박지형;강민형;노형민
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 1997.04a
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    • pp.445-449
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    • 1997
  • In order to provide a manufacturing system with efficiency and flexibility to cope with the changes in shop floor status, the integration of process planning and operations scheduling is required. In this paper,an integrated system of process planning and operations scheduling based on the concept of process net model is presented. The process net model includes the alternative process plans. The integrated system is applied for prismatic parts.

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Object-Oriented Programming of Entity-Based Integrated Design Model (개체형 통합설계모델의 객체지향 프로그래밍)

  • 이창호;김진근
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 2002.10a
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    • pp.211-218
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    • 2002
  • An entity-based integrated design product and process model uses product and process entities to describe design information and design activities, respectively. The concepts and notation for product and process entities in the entity-based integrated design model are similar to the concepts of object-oriented programming languages such as C++ and Smalltalk. This paper uses C++ to program an entity-based integrated design model for building frames structures. The design information and activities involved in the three dimensional building space, the locations of frames, and the grouping of frames represented as entities in the entity-based integrated design model are transformed to C++ codes. Each product or process entity can be basically transformed to an class. The attributes of an entity can be defined as variables and member functions of a class.

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Product Data Model for Supporting Integrated Product, Process, and Service Design (제품, 공정, 서비스 통합 설계를 지원하는 제품자료모델)

  • Do, Nam-Chul
    • Journal of Korean Institute of Industrial Engineers
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    • v.38 no.2
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    • pp.98-106
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    • 2012
  • The current market preassure of least environmental effects of products needs companies to consider whole life cycle of their products during their design phase. To support the integrated and collaborative development of the products, this paper proposed product data model for extended Product Data Managemen (PDM) that can support integrated design of product, manufacturing process, and customer services, based on the consistent and comprehensive PDM databases. The product data model enables design, manufacturing, and service engineers to express their products and services efficiently, with sharing consistent product data, engineering changes, and both economical and environmental evaluations on their design alternatives. The product data model was implemented with a prototype PDM system, and validated through an example product. The result shows that the PDM based on the proposed product data model can support the integrated design for products, manufacturing process, and customer services, and provide an environment of collaborative product development for design, manufacturing and service engineers.

Integrated Management of Process Schedule and Quantity Take-Off for Steel Structures using BIM Information (BIM정보를 활용한 강구조물의 공정 물량 통합관리)

  • Kim, Jin-Uk;Shin, Tae-Song
    • Journal of KIBIM
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    • v.8 no.2
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    • pp.10-18
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    • 2018
  • BIM technologies store, share and integrate the information produced in each sector of the construction industry. From this point on, it increases the efficiency of the work. Currently, quantity take-off and process schedule are derived separately based on BIM technology. When calculating the quantity by process, relevant information shall be collected, reinterpreted, and reevaluated as required by the practice. The purpose of this study is to develop an integrated process and quantity management system through BIM collaboration and to build prototypes for steel structures. The main research is to build a construction BIM model for steel structures and a process BIM model through BIM collaboration. Furthermore, necessary information was selected and processed according to the user's needs for integrated management. Relevant integration outcomes are visualized graphically to maximize utilization. Through these studies, a system for integrated control of processes and supplies is provided, and the results are expected to contribute to the improvement of working efficiency and are easily and quickly reflected in design change and process change. In this study, we intended to enhance the usability of information by linking process schedules with quantity calculations based on BIM. Thus, the process for integrated control of the quantity of structural components by process unit and the BIM based schedule information was established. In addition, the efficiency of the information link of the integrated management system was considered for design changes and process schedule changes.

A Study on Integrated SE Process for the Development of the Railway Systems with Safety Assessment Included (철도 시스템 개발에서 시스템공학 프로세스와 안전성 평가를 동시에 고려한 통합 프로세스에 관한 연구)

  • Yoon, Jae-Han;Lee, Jae-Chon;Hong, Seon-Ho
    • Journal of the Korean Society for Railway
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    • v.10 no.4
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    • pp.438-443
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    • 2007
  • This paper proposes an integrated SE process for the development of railway systems with safety assessment included. Although the safety assessment process must be performed with SE process properly with good coordination, the interfaces between the two processes have not been clear. Thus, in many of safety critical system developments in Korea, it is difficult to assess safety in proper development phase. The process model proposed in this paper is based on both the concept of system life cycle and the repetitive use of SE process. In each of development phases, appropriate safety assessment methods are described. Also the evaluation of the integrated system incorporating safety factors is described. The resultant process model is expressed by the Enhanced Functional Flow Block Diagram (EFFBD) using a CASE tool. The model also allows timeline analysis for identifying activity flow and data flow, resulting in the effective management of process. In conclusion, the integrated process enable both the SE process and safety assessment process to cooperate with each other from early development phase throughout the whole system life cycle.

Integrated scheduling model for PVC process

  • Kang, Min-Gu;Moon, Sung-Deuk;Kang, Jin-su;Park, Sun-Won
    • 제어로봇시스템학회:학술대회논문집
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    • 2003.10a
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    • pp.1804-1809
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    • 2003
  • In a large-scale chemical plant, there are scheduling problems in inventory and packing process although production process is stabilized. The profit of the plant is restricted by these problems. In order to improve these problems, integrated scheduling model, which is concerned with whole processes from production to shipment, has been developed in this paper. In this model, decision variables are production sequence, silo allocation, amounts of bulk shipment and packing amounts. In case of a real plant, it is hard to solve by deterministic methods because there are too many decision variables to solve. In this paper, genetic algorithm is presented to solve a PVC process scheduling model within an hour with PCs.

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Statistical Process Control Procedure for Integral-Controlled Processes

  • Lee, Jaeheon;Park, Cangsoon
    • Communications for Statistical Applications and Methods
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    • v.7 no.2
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    • pp.435-446
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    • 2000
  • Statistical process control(SPC) and engineering process control(EPC) are two strategies for quality improvement that have been developed independently. EPC seeks to minimize variability by adjusting compensatory variables in order to make the process level close to the target, while SPC seeks to reduce variability by monitoring and eliminating causes of variation. One purpose of this paper is to propose the IMA(0,1,1) model as the in-control process model. For the out-of-control process model we consider two cases; one is the case with a step shift in the level, and the other is the case with a change in the nonstationarity. Another purpose is to suggest the use of an integrated process control procedure with adjustment and monitoring, which can consider the proposed process model effectively. An integrated control procedure will improve the process control activity significantly for cases of the proposed model, when compared to the procedure of using either EPC or SPC, since EPC will keep the process close to the target and SPC will eliminate special causes.

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Integration of CAE Data Management with PLM by using Product Views (제품관점을 이용한 CAE 자료관리와 PLM 통합)

  • Do, Nam-Chul;Yang, Young-Soon
    • Journal of the Computational Structural Engineering Institute of Korea
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    • v.21 no.6
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    • pp.527-533
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    • 2008
  • This paper proposes a product data model and associated process for CAE activities in context of integrated product development. The data model and process enable Product Lifecycle Management(PLM) systems to integrate currently separated CAE activities into the main product development process. The product view concept in the proposed product data model supports independent CAE activities including analysis of various alternatives based on shared product structures with design departments and seamless translation of the CAE result to design product views. The proposed model is validated through an implementation of a prototype PLM system that can integrate and synchronize CAE process with the company-wide product development process.

Business Process Model Formalization and Structural Anomaly Verification Techniques for Integrated Process Management of Medical Institutions (의료기관 프로세스 통합 관리를 위한 비즈니스 프로세스 모델 정형화 및 구조적 이상 현상 검증 기법)

  • Kim, Gun-Woo;Kim, Seong-Hyuk
    • The Journal of the Korea Contents Association
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    • v.18 no.7
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    • pp.177-193
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    • 2018
  • The business process management system that can integrate and manage a medical institution's processes has been increased importance to adapt to constantly changing medical environments and share information with various external medical institutions. The business process management system is an automated process tool that converts the graphic-based BPMN process model into a WS-BPEL, the execution language of the web service environment, and executes it through the process engine. However, the BPMN process model can be difficult to convert into WS-BPEL due to several ambiguities and structural inconsistencies. The process model may also contain structural anomalies that can lead to execution errors during process execution. In this paper, we present business process model formalization and structural anomaly verification techniques for facilitating integrated process management in medical institutions. Through the case study based on the IHE profile, we presented a formalized BPMN process model and verify the structural anomalies. We show the superiority of the proposed technique through comparative experiments with other related works.