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1 – 10 of over 271000
Article
Publication date: 13 November 2009

Ling Xuqiang, Huang Xiaodong, Li Bohu and Chai Xudong

Complex system modeling requires not only understanding of modeling framework but also domain knowledge of the system. The purpose of this paper is to present an approach which…

Abstract

Purpose

Complex system modeling requires not only understanding of modeling framework but also domain knowledge of the system. The purpose of this paper is to present an approach which separates the domain knowledge from the modeling framework with different views.

Design/methodology/approach

By establishing the mechanism of association and fusion among the views, the description and characterization of system from different aspect and point of view can form a complete system model. Based on the approach, a modeling and simulation (M&S) platform named SimFaster is developed. Modeling environment and simulation engine are the most important parts of the platform. The modeling environment provides multi‐views and multi‐layers to help the developers to modeling the structure, layers, composition, behavior, and interactions of an application system. The simulation engine provides mechanism of integration and interaction for components and objects, and provides runtime support for the concepts and terms from modeling environment. The simulation engine organizes the objects in the memory of distributed system as reflective object database system, so it is repository centered architecturally.

Findings

Based on the approach of multi‐views modeling, the platform is a flexible framework and supports top‐down design, model reuse and interoperation, dynamic refinement of models, corporative design among different users in different stages, and the rebuilt of application rapidly.

Research limitations/implications

This paper deals with high‐level models of the complex systems.

Practical implications

This platform helps to design, modeling, and simulation complex system (especially for weapon combat system). It can participate into all the stages of the development of complex product/system, and can support the validation, refinement, optimization of models, and systems.

Originality/value

This paper presents a multi‐views modeling approach for the modeling of complex system.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 28 no. 6
Type: Research Article
ISSN: 0332-1649

Keywords

Article
Publication date: 5 February 2018

Mengru Tu, Ming K. Lim and Ming-Fang Yang

The lack of reference architecture for Internet of Things (IoT) modeling impedes the successful design and implementation of an IoT-based production logistics and supply chain…

4696

Abstract

Purpose

The lack of reference architecture for Internet of Things (IoT) modeling impedes the successful design and implementation of an IoT-based production logistics and supply chain system (PLSCS). The authors present this study in two parts to address this research issue. Part A proposes a unified IoT modeling framework to model the dynamics of distributed IoT processes, IoT devices, and IoT objects. The models of the framework can be leveraged to support the implementation architecture of an IoT-based PLSCS. The second part (Part B) of this study extends the discussion of implementation architecture proposed in Part A. Part B presents an IoT-based cyber-physical system framework and evaluates its performance. The paper aims to discuss this issue.

Design/methodology/approach

This paper adopts a design research approach, using ontology, process analysis, and Petri net modeling scheme to support IoT system modeling.

Findings

The proposed IoT system-modeling approach reduces the complexity of system development and increases system portability for IoT-based PLSCS. The IoT design models generated from the modeling can also be transformed to implementation logic.

Practical implications

The proposed IoT system-modeling framework and the implementation architecture can be used to develop an IoT-based PLSCS in the real industrial setting. The proposed modeling methods can be applied to many discrete manufacturing industries.

Originality/value

The IoT modeling framework developed in this study is the first in this field which decomposes IoT system design into ontology-, process-, and object-modeling layers. A novel implementation architecture also proposed to transform above IoT system design models into implementation logic. The developed prototype system can track product and different parts of the same product along a manufacturing supply chain.

Details

Industrial Management & Data Systems, vol. 118 no. 1
Type: Research Article
ISSN: 0263-5577

Keywords

Article
Publication date: 31 May 2011

Marie de Rochambeau, Mohamed Ichchou and Bernard Troclet

The purpose of this paper is to extend statistical energy analysis (SEA)‐like modeling to fluid‐structure coupled systems.

Abstract

Purpose

The purpose of this paper is to extend statistical energy analysis (SEA)‐like modeling to fluid‐structure coupled systems.

Design/methodology/approach

An equivalent approach of aerodynamic loads is applied to a SEA‐like modeling of a panel‐cavity coupled system with rain‐on‐the‐roof excitation. Two aerodynamic excitations are presented: turbulent boundary layer (TBL) and diffuse field excitation. The energetic description of the coupled system is studied with both aerodynamic excitations, taking in account the coincidence effects. In order to extent the approach to more general systems, some parameters of the coupled system are also modified and the accuracy of the coupled system modeling is investigated.

Findings

The boundary conditions of the panel and the coupling strength between the panel and the cavity have been modified. As it was expected, the accuracy of equivalent approach is shown to be independent of such modifications. The interest of such calculation is thus highlighted: modelings of systems and aerodynamic excitations are independent, and can be treated separately.

Originality/value

This result is interesting in the space industry, for launch vehicles are excited by different types of random excitations. Those excitations can be modeled by SEA‐like with low calculation time and memory and applied to a unique system modeling.

Details

Engineering Computations, vol. 28 no. 4
Type: Research Article
ISSN: 0264-4401

Keywords

Book part
Publication date: 11 May 2010

Pekka Huovinen

An issue of managing a business (unit) as a whole successfully is perceived to belong to the fundamental issues within strategic management. This paper proposes that a business…

Abstract

An issue of managing a business (unit) as a whole successfully is perceived to belong to the fundamental issues within strategic management. This paper proposes that a business unit can be managed successfully in short and longer term in its focal contexts as a set of three recursive, competence-based, and process-based systems. Many elements of Stafford Beer's (1985) viable system model along the key competence-based theoretical bases are applied to this system design task. The outcome is an ideal, recursive template for advancing competence-based business management (CBBM) and its conceptual modeling. It is assumed that it is possible to design a business unit as a viable system that is capable of sustaining a separate existence at only three levels of hierarchy, as part of single or multi-business firms. Business-process models and their redesign processes are chosen as the 2nd-order, focal system which produces a business unit's competitiveness and solves longitudinal CBBM problems. One level of recursion down includes a unit's value creating, capturing, releveraging, and respective processes that enable to solve cross-sectional problems. One level of recursion up includes a unit's existential foresights and their crafting processes that solve existential problems. Recursivity is designed inside each system in terms of three kinds of subsystems for (a) primary value releveraging, process-model redesign, and business-foresight crafting, (b) the management of varieties in releveraging, modeling, and foreseeing, and (c) the monitoring and probing of all three systems. Systemic competences are incorporated inside respective systems. Such competences possess three flexibilities of absorption, attenuation, and amplification. At each level of recursion, a competence-based process is a unit of conceptual modeling of CBBM. A business unit is defined as a set of its purposeful processes. No thing or one is left outside them. Viability is ensured by real-time interaction and the 1st-, 2nd-, and 3rd-order feedback loops between three systems. Overall, the suggested, recursive, 3-system template is intended to serve future, compatible modeling efforts among interested, pioneering firms, professional CBBM modelers, scholars, and alike. Its novelty is produced by choosing and designing the CBBM modeling as the 2nd-order system-in-focus with its two recursions, by designing and using systemic, competence-based processes as the units of conceptualization, and by choosing and drawing the figures to illustrate the 3-system template in the ways that allow also business managers comprehend and apply the suggested template in practice.

Details

A Focussed Issue on Identifying, Building, and Linking Competences
Type: Book
ISBN: 978-1-84950-990-9

Book part
Publication date: 28 February 2017

Glen D’este

Abstract

Details

Handbook of Logistics and Supply-Chain Management
Type: Book
ISBN: 978-0-8572-4563-2

Article
Publication date: 28 October 2005

Bruce C. Hungerford and Michael A. Eierman

The Unified Modeling Language has become an alternative to traditional modeling languages such as data flow diagrams for use in systems analysis. A modeling language is used to…

Abstract

The Unified Modeling Language has become an alternative to traditional modeling languages such as data flow diagrams for use in systems analysis. A modeling language is used to represent an information system so that analysts can use the model to make decisions about the design of the system and to communicate with stakeholders about the system. This study examines the comparative effectiveness of the UML and traditional modeling languages in communicating information about a system design. The study examines this on three types of individuals: individuals with no knowledge of either modeling language, individuals with no knowledge of either language that were provided training in one of the languages, and individuals that have had more extensive training in one of the languages. The study finds that there is no difference in the ability to communicate system design information between the languages for the first two types of individuals. However, the study finds that, for more extensively trained individuals, systems modeled with the UML are better able to communicate information about the data in the system while systems modeled with traditional languages are better able to communicate information about the process used by the system.

Details

American Journal of Business, vol. 20 no. 2
Type: Research Article
ISSN: 1935-5181

Keywords

Book part
Publication date: 2 December 2019

Irina A. Tarasova, Natalia A. Shchukina, Oksana A. Avdeyuk and Vera V. Nekrasova

The purpose of the chapter is to study possible approaches to determining the notion “business system” and to describe possible optimization models of decision-making in modern…

Abstract

Purpose

The purpose of the chapter is to study possible approaches to determining the notion “business system” and to describe possible optimization models of decision-making in modern business systems from the position of these approaches.

Methodology

The methodology of the research includes systemic analysis, discrete event approach in simulation modeling, modeling of complex hierarchical system on the basis of turning criteria into a generalized indicator with the help of functional Kolmogorov mean, and mathematical tools of the Theory of games.

Results

The authors study possible variants of modeling of business systems from the position of various approaches: commercial, practice-oriented, and organizational. Within the commercial approach to defining the notion “business system,” the discrete event approach to simulation modeling on the basis of Markov chains was compiled. A model of starting a certain new commodity in sales was compiled for determining the long-term strategy in the market. Within the practice-oriented approach, evaluation of effectiveness of personal as a component of business system is modeled. Within the organizational approach, two competing companies are modeled on the basis of the positional game.

Recommendations

Finding the optimization model of decision-making in modern business systems is impossible without of the system approach – that is, without considering possible definitions of the term “business system” and compiling the corresponding models. Only the systemic approach will allow for objective and comprehensive modeling of behavior of business systems. The offered methodologies will allow modeling evaluation of the current state of business system, changes of the system in dynamics, and its relations with other business systems.

Details

The Leading Practice of Decision Making in Modern Business Systems
Type: Book
ISBN: 978-1-83867-475-5

Keywords

Article
Publication date: 21 May 2021

Sungjoo Hwang, Seungjun Ahn and SangHyun Lee

Both system dynamics (SD) and agent-based modeling (ABM) have been used in simulation-based group dynamics research. To combine the advantages of both simulation approaches, the…

Abstract

Purpose

Both system dynamics (SD) and agent-based modeling (ABM) have been used in simulation-based group dynamics research. To combine the advantages of both simulation approaches, the concept of SD-ABM hybrid simulation has been proposed. However, research efforts to compare the effectiveness of modeling approaches between the hybrid and non-hybrid models in the context of group dynamics study are rare. Against this background, this study aims to propose an agent-embedded SD (aeSD) modeling approach and demonstrate its advantages when compared to pure SD or ABM modeling approaches, based on a research case on construction workers’ social absenteeism.

Design/methodology/approach

The authors introduce an aeSD modeling approach to incorporate individual attributes and interactions among individuals in an SD model. An aeSD model is developed to replicate the behavior of an agent-based model previously developed by the authors to study construction workers’ group behavior regarding absenteeism. Then, the characteristics of the aeSD model in comparison with a pure ABM or SD model are demonstrated through various simulation experiments.

Findings

It is demonstrated that an aeSD model can capture the diversity of individuals and simulate emergent system behaviors arising from interactions among heterogeneous agents while holding the strengths of an SD model in identifying causal feedback loops and policy testing. Specifically, the effectiveness of the aeSD approach in policy testing is demonstrated through examples of simulation experiments designed to test various group-level and individual-level interventions to control social absence behavior of workers (e.g. changing work groupings, influencing workgroup networks and communication channels) under the consideration of the context of construction projects.

Originality/value

The proposed aeSD modeling method is a novel approach to how individual attributes of agents can be modeled into an SD model. Such an embedding-based approach is distinguished from the previous communication-based hybrid simulation approaches. The demonstration example presented in the paper shows that the aeSD modeling approach has advantages in studying group dynamic behavior, especially when the modeling of the interactions and networks between individuals is needed within an SD structure. The simulation experiments conducted in this study demonstrate the characteristics of the aeSD approach distinguishable from both ABM and SD. Based on the results, it is argued that the aeSD modeling approach would be useful in studying construction workers’ social behavior and investigating worker policies through computer simulation.

Article
Publication date: 17 June 2019

Marina Toledo de Arruda Lourenção, Letícia Miyamaru, Janaina de Moura Engracia Giraldi and Silvia Inês Dallavalle de Pádua

Sectoral brand management processes have presented planning, development and implementation challenges. With the aim of reducing these managerial problems, the purpose of this…

Abstract

Purpose

Sectoral brand management processes have presented planning, development and implementation challenges. With the aim of reducing these managerial problems, the purpose of this paper is to revise the structure and the processes of the sectoral brands management.

Design/methodology/approach

This is a qualitative exploratory study, with its unit of analysis being the process of managing the brand of the Brazilian fashion sector. Primary data collection was obtained through in-depth interviews with the seven industry associations and with the company responsible for the brand consulting. The secondary data used were reports about the branding process of the brand provided by respondents. Data analysis was provided by using the VSM to modeling sector structure and BPMN to processes modeling.

Findings

The results present a new sectoral brand structure and process to reduce existing barriers. Three sections were carried out: analysis and modeling of the current structure and processes of sectoral brand management; presentation of the current structure and processes problems; analysis and modeling of future structure and processes of sectoral brand management.

Research limitations/implications

A theoretical contribution is provided in the literature of systems, processes and sectoral brands, since there are no previous studies that elaborated a system structure and process for sectoral brands. In addition, other theoretical contribution is the presentation of a future process model that relates brand management process with its system structure, that is, it relates BPM analysis with VSM.

Practical implications

It is also possible to indicate that VSM and BPM can contribute to the management of sectoral brands, through the structural and process problems identification and also by making possible to suggest future management improvements to reduce the barriers that were identified.

Originality/value

The present study originality is the approach of the first analysis of sector brand management with emphasis on its structure and processes that were experienced by the Brazilian fashion sector.

Details

Business Process Management Journal, vol. 26 no. 1
Type: Research Article
ISSN: 1463-7154

Keywords

Open Access
Article
Publication date: 26 May 2023

Mpho Trinity Manenzhe, Arnesh Telukdarie and Megashnee Munsamy

The purpose of this paper is to propose a system dynamic simulated process model for maintenance work management incorporating the Fourth Industrial Revolution (4IR) technologies.

1624

Abstract

Purpose

The purpose of this paper is to propose a system dynamic simulated process model for maintenance work management incorporating the Fourth Industrial Revolution (4IR) technologies.

Design/methodology/approach

The extant literature in physical assets maintenance depicts that poor maintenance management is predominantly because of a lack of a clearly defined maintenance work management process model, resulting in poor management of maintenance work. This paper solves this complex phenomenon using a combination of conceptual process modeling and system dynamics simulation incorporating 4IR technologies. A process for maintenance work management and its control actions on scheduled maintenance tasks versus unscheduled maintenance tasks is modeled, replicating real-world scenarios with a digital lens (4IR technologies) for predictive maintenance strategy.

Findings

A process for maintenance work management is thus modeled and simulated as a dynamic system. Post-model validation, this study reveals that the real-world maintenance work management process can be replicated using system dynamics modeling. The impact analysis of 4IR technologies on maintenance work management systems reveals that the implementation of 4IR technologies intensifies asset performance with an overall gain of 27.46%, yielding the best maintenance index. This study further reveals that the benefits of 4IR technologies positively impact equipment defect predictability before failure, thereby yielding a predictive maintenance strategy.

Research limitations/implications

The study focused on maintenance work management system without the consideration of other subsystems such as cost of maintenance, production dynamics, and supply chain management.

Practical implications

The maintenance real-world quantitative data is retrieved from two maintenance departments from company A, for a period of 24 months, representing years 2017 and 2018. The maintenance quantitative data retrieved represent six various types of equipment used at underground Mines. The maintenance management qualitative data (Organizational documents) in maintenance management are retrieved from company A and company B. Company A is a global mining industry, and company B is a global manufacturing industry. The reliability of the data used in the model validation have practical implications on how maintenance work management system behaves with the benefit of 4IR technologies' implementation.

Social implications

This research study yields an overall benefit in asset management, thereby intensifying asset performance. The expected learnings are intended to benefit future research in the physical asset management field of study and most important to the industry practitioners in physical asset management.

Originality/value

This paper provides for a model in which maintenance work and its dynamics is systematically managed. Uncontrollable corrective maintenance work increases the complexity of the overall maintenance work management. The use of a system dynamic model and simulation incorporating 4IR technologies adds value on the maintenance work management effectiveness.

Details

Journal of Quality in Maintenance Engineering, vol. 29 no. 5
Type: Research Article
ISSN: 1355-2511

Keywords

1 – 10 of over 271000