DEA의 교차효율성을 활용한 다기준 ABC 재고분류 방법 연구
박재훈, 배혜림, 임성묵
대한산업공학회지, 제37권, 제4호, 2011
웹 기반 공정개선 지원 시스템 개발
조현재, 조용주, 노상도, 박유진, 배혜림, 류광열
한국CAD/CAM학회 논문집, 제17권 8월호, 2011
온톨로지를 이용한 선박 통관 프로세스의 유사성 측정
베르나르도, 박재훈, 배혜림, 모정관
대한산업공학회지, 제 37권, 제2호, 2011
BPM 기반 항만 커뮤니티 시스템 통합 구조 설계
박재훈, 배혜림, 하재경, 이훈, 서창석
Journal of Information Technology and Architecture, Vol. 7, No.3, 2010
컨텍스트 의존 DEA를 활용한 다기준 ABC 재고 분류 방법
박재훈, 임성묵, 배혜림
산업경영시스템학회지, 제33권, 제4호, 2010
제조 기업 중심의 유비쿼터스 기술 활용 방안
경제경영연구, 제4권, 제2호, 2009
Optimal Planning of Business Process Execution in BPM Environments
(SCI) Hyerim Bae, Sanghyup Lee, and Ilkyung Moon
European Journal of Industrial Engineering, submitted
A Study on the Selection of Benchmarking Paths in DEA
(SCIE) Sungmook Lim, Hyerim Bae, Loo Hay Lee
Expert Systems with Applications
Keywords : Data Envelopment Analysis; Benchmarking; Non-parametric method; Stratification
One of the existing DEA methods’ limitations noted in the literature lies in the process of benchmarking of reference targets for inefficient DMUs. Difficulties arising in this process can be summarized to three aspects. First, the reference target might be a hypothetical DMU that does not actually exist (it is difficult and indeed unrealistic to learn from such a DMU). Second, the reference set of an inefficient DMU often has multiple efficient DMUs making it difficult to benchmark multiple best-practice DMUs simultaneously. Third, it is quite impossible for an inefficient DMU to achieve its target’s efficiency in a single step, especially when the inefficient DMU is far from the efficient frontier. In order to overcome these difficulties, we propose, in place of the selection of benchmarked DMUs on the efficient frontier, a method of selecting effective benchmarking paths that direct an inefficient DMU to its target on the efficient frontier in an implementable and realistic way. The proposed method was designed based on the idea of the context-dependent DEA proposed by Seiford and Zhu (2003). It starts by clustering DMUs into several layers according to their efficiency scores, and then establishes a benchmarking path across the sequence of layers. Among the DMUs in the next layer, the most preferable one is selected as the next benchmark target, based on three criteria: attractiveness, progress, and infeasibility. We tested the proposed method by applying it to the evaluation of the relative efficiency of operations of 26 container terminals located in Asia.
Increasing the efficiency of business processes using a theory of constraints
(SCIE) Seung-Hyun Rhee, Namwook Cho, and Hyerim Bae
Information Systems Frontiers
Publisher : Springer Netherlands
ISSN 1387-3326 (Print) 1572-9419 (Online)
Keywords : Business process efficiency . Business process management . Theory of constraints . Drum-Buffer-Rope . Simulation
In this study, a Theory of Constraints (TOC)- based method was developed to enhance the efficiency of business processes. Whereas the TOC has been employed in manufacturing processes, the present paper shows that it can be effective also for Business Process Management (BPM). In order to apply the TOC to business processes, a Drum-Buffer-Rope (DBR) scheduling method for a Business Process Management System (BPMS) was developed. A procedure by which business process efficiency can be improved using these concepts is presented. To validate our approach, a series of simulations of a real banking process was conducted, on the basis of which the applicability of the proposed method was analyzed. Based on the analysis results, we show that the TOC-based method can improve business process efficiency, particularly under heavy workloads with limited resources. And we suggest, accordingly, several guidelines that can be followed for the efficient management of business processes.
Analytic hierarchy Process to assess and optimize distribution network
(SCIE) Mithun Sharma, Ilkyeong Moon, and Hyerim Bae
2008 Elsevier Inc. All rights reserved.
Applied Mathematics and Computation
Volume 202, Issue 1, 1 August 2008, Pages 256-265
Keywords: Analytic hierarchy process; Distribution network; Supply chain; Multi-criteria decision-making
Effective supply chain distribution network design needs to consider various performance dimensions and product characteristics. Recently, researchers have begun to realize that the decision and integration effort in supply chain design should be driven by a comprehensive set of performance metrics and also product characteristics. In this paper, we relate product characteristics to optimizing supply chain delivery network design and adopt cost and service factor performance metrics as the decision criteria. An analytic hierarchy process (AHP) multi-criteria decision-making methodology is then developed to take into account both qualitative and quantitative factors in the best delivery network design selection. By using AHP methodology we could optimize the selection of delivery network design followed by relevant choices for decision making of Home plus distribution center.
Genetic Algorithms for the job shop scheduling problems with alternative routings
(SCI) Ilkyeong Moon, Sanghyup Lee, and Hyerim Bae
International journal of production research
ISSN 0020-7543 CODEN IJPRB8
2008, vol. 46, no10, pp. 2695-2705
Vol. 46, No. 10, pp. 2695-2705, May 2008
Keywords: Job shop; Production scheduling; FMS; Genetic algorithm
The purpose of this research is to solve a general job shop problem with alternative machine routings. We consider four performance measures: mean flow time, makespan, maximum lateness, and total absolute deviation from the due dates. We first develop mixed-integer linear programming (MILP) formulations for the problems. The MILP formulations can be used either to compute optimal solutions for small-sized problems or to test the performance of existing heuristic algorithms. In addition, we have developed a genetic algorithm that can be used to generate relatively good solutions quickly. Further, computational experiments have been performed to compare the solution of the MILP formulations with that of existing algorithms.
Development of Distance Measures for Process Mining, Discovery, and Integration
(SCIE) Joonsoo Bae, Ling Liu, James Caverlee, and Hyerim Bae
Business Process Management Workshops
ISBN 978-3-642-12185-2 (Print) 978-3-642-12186-9 (Online)
ISSN 1865-1348 (Print) 1865-1356 (Online)
Keywords: business process; process mining; similarity
Vol. 4, No. 4, pp. 1-17, Oct.-Dec. 2007
Business processes continue to play an important role in today’s service-oriented enterprise computing systems. Mining, discovering, and integrating process-oriented services has attracted growing attention in the recent years. In this article, we present a quantitative approach to modeling and capturing the similarity and dissimilarity between different process designs. We derive the similarity measures by analyzing the process dependency graphs of the participating workflow processes. We first convert each process dependency graph into a normalized process matrix. Then we calculate the metric space distance between the normalized matrices. This distance measure can be used as a quantitative and qualitative tool in process mining, process merging, and process clustering, and ultimately it can reduce or minimize the costs involved in design, analysis, and evolution of workflow systems.
A More Comprehensive Approach for Enhancing Business Process Efficiency
Seung-Hyun Rhee, Nam Wook Cho, Hyerim Bae
Human Interface and the Management of Information. Interacting in Information Environments
Lecture Notes in Computer Science
Springer Berlin / Heidelberg
ISSN 0302-9743 (Print) 1611-3349 (Online)
Volume Volume 4558/2007
Keywords: Business Process Management, User-Oriented Support, Process Efficiency, Theory of Constraints, Dispatching Rule.
Whereas Business Process Management (BPM) systematically guides employee participation in business processes, there has been little support, use or development of user-friendly functions to improve the efficiency of those processes. To enhance business process efficiency, it is necessary to provide automatic rational task allocation and work-item importance prioritization, so that task performers no longer need to be concerned with process performance. In the context of BPM, two different perspectives, the Process Engine Perspective (PEP) and the Task Performer Perspective (TPP), are considered. Accordingly, we developed a comprehensive method that considers those two perspectives, in combination rather than separately. We carried out simulation experiments to show the combinational effect of the two phases.
A version Management of Business Process Models in BPMS
Hyerim Bae, Eunmi Cho, and Joonsoo Bae
Lecture Notes in Computer Science
Springer Berlin / Heidelberg
ISSN 0302-9743 (Print) 1611-3349 (Online)
Volume Volume 4537/2007
Advances in Web and Network Technologies, and Information Management
Keywords: Business Process Management, Version Management, XML.
Vol. 4537 (APWeb/WAIM 2007 Ws), pp. 534-539, 2007
Abstract. BPM system manages increasing number of business processes and the necessity of managing processes during whole process lifecycle from process modeling to process archiving has been emerged. Despite of wide use of the BPM system and the maturing of its technology, the main focus has been mainly on correctly executing process models, and convenient modeling of business processes has not been considered. In this paper, a new method of versioning business processes is developed in order to provide users with an easy modeling interface. Version management of a process enables a history of the process model to be recorded systematically. In our method, an initial version and changes are stored for each process model, and any version can be reconstructed using them. We expect that our method enhances the convenience of process modeling in an environment of huge number of business processes, and thereby assists the process designer. In order to verify the effectiveness of our method, a prototype system is presented in this paper.
BPM-based Integration of Supply Chain Process Modeling, Executing and Monitoring
(SCI) Hyerim Bae, and Yongwon Seo
International Journal of Production Research, Volume 45, Number 11, June 2007 , pp. 2545-2566(22)
Publisher: Taylor and Francis Ltd
Document Type: Research article
vol. 45, No. 11, pp. 2545-2566, June 2007
Keywords: SCM; BPM; Web services; Role-based monitoring; Agent
Due to increased competition in business environments, many companies implement Supply Chain Management (SCM), which utilizes advanced information technologies. Since the execution of the Supply Chain Process (SCP) requires interaction and information sharing among multiple organizations, there have been efforts to apply Business Process Management (BPM) techniques to SCM implementation. Whereas previous research has focused mainly on automated execution of the SCP, effective SCM requires the integrated lifecycle management of SCP that includes modeling, execution, and monitoring. Thus, in this research, we develop, based on the BPM system, an integrated architecture to support modeling, execution and monitoring of SCP. To model the SCP, we propose to use Business Process Execution Language (BPEL), which facilitates easy process sharing among supply chain members who adopt heterogeneous information systems. Since SCM decisions require complex analytical calculations concerning multiple different companies, it is necessary to separate the process logic and the decision algorithm. Thus, we developed an SCP execution structure in which the decision algorithm is implemented as an agent that is invoked using Web services. While BPM enables process monitoring, the multi-organizational environment considered here involves the important issue of the setting and controlling of access levels of each company’s process information to be monitored. To address this problem, we propose a role-based supply chain process monitoring (RSCPM) model. A prototype system is implemented.