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1 – 10 of 493Mahesh C. Gupta and Lynn H. Boyd
The purpose of this paper is to suggest that the theory of constraints (TOC) can serve as a general theory in operations management. The paper first investigate linkages between…
Abstract
Purpose
The purpose of this paper is to suggest that the theory of constraints (TOC) can serve as a general theory in operations management. The paper first investigate linkages between TOC and the core concepts/components of operations management (OM) and show how OM concepts can be integrated with TOC using examples from the published TOC literature. A second important purpose is to show that TOC, as a theory, has properties essential for a good theory.
Design/methodology/approach
Using a commonly accepted categorization of operations decisions (process, quality, inventory and capacity), traditional views, and approaches to operations decisions to those inherent in the TOC are compared.
Findings
The paper concludes that the TOC provides approaches to operations decisions that avoid pitfalls of local optimization by reaching across functional boundaries in organizations. In addition, while the TOC appears to meet the criteria of a good theory, it has not been empirically tested for the most part.
Originality/value
The TOC can serve as a unifying theory or theme for operations management, providing new insights for researchers and an organizing principle for teachers.
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A new approach to the management of production and operations was developed by Goldratt in the late 1970s. Now known as the theory of constraints (TOC), it provides a coherent…
Abstract
A new approach to the management of production and operations was developed by Goldratt in the late 1970s. Now known as the theory of constraints (TOC), it provides a coherent management theory for running an organisation. It has two major components: a philosophy which underpins the working principle of on‐going improvement, and a generic approach for investigating, analysing and creating solutions to problems called the “thinking process” (TP). During the last decade several books and many articles have been published, and a journal has been established which deals solely with the TOC. This paper contains an analysis of a comprehensive list of publications on the TOC. Identified themes are classified as conceptual explanation and enhancement of the approach, comparison with other techniques based on its philosophy, and applications in areas such as production, purchasing, accounting, administration, education and quality management.
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Mohit Datt, Ajay Gupta, Sushendra Kumar Misra and Mahesh Gupta
Theory of Constraints (TOC), though a well-established process improvement methodology in manufacturing, is still a novel philosophy for healthcare and an exhaustive review of…
Abstract
Purpose
Theory of Constraints (TOC), though a well-established process improvement methodology in manufacturing, is still a novel philosophy for healthcare and an exhaustive review of literature is needed to summarize the key findings of various researchers. Such a review can provide a direction to the researchers and academicians interested in exploring the application of TOC in the healthcare sector. This paper aims to review the existing literature of TOC tools and techniques applied to the healthcare environment, and to investigate motivating factors, benefits and key gaps for identifying directions for future research in the domain of healthcare.
Design/methodology/approach
In this paper, different electronic repositories were searched using multiple keywords. The current study identified 36 articles published between January 1999 to mid-2021 to conceptualize and summarize the research questions used in the study. Descriptive analysis along with pictorial representations have been used for better visualization of work.
Findings
This paper presents a thorough literature review of TOC in healthcare and identifies the evolution, current trends, tools used, nature of services chosen for application and research gaps and recommends future direction for research. A variety of motivating factors and benefits of TOC in healthcare are identified. Another key finding of this study is that almost all implementations listed in literature reported positive outcomes and substantial improvements in the performance of the healthcare unit chosen for study.
Practical implications
This paper provides valuable insight to researchers, practitioners and policymakers on the potential of TOC to improve quality of services, flow of patients, revenues, process efficiency and cost reduction in different health care settings. A number of findings and suggestions compiled in the paper from literature study can be used for diagnosing, learning and making substantial changes in healthcare. The methodologies used by different researchers were analysed and combined to propose a generic step by step procedure to apply TOC. This methodology will guide the practising managers about the appropriate tools of TOC for their specific need.
Social implications
Good health is always the first desire of all men and women around the globe. The global aim of healthcare is to quickly cure more patients and ensure healthier population both today and in future. This article will work as a foundation for future applications of TOC in healthcare and guide upcoming applications in the booming healthcare sector. The paper will help the healthcare managers in serving a greater number of patients with limited available resources.
Originality/value
This paper provides original collaborative work compiled by the authors. Since no comprehensive systematic review of TOC in healthcare has been reported earlier, this study would be a valuable asset for researchers in this field. A model has been presented that links various benefits with one another and clarifies the need to focus on process improvement which naturally results in these benefits. Similarly, a model has been presented to guide the users in implementation of TOC in healthcare.
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Diego Augusto de Jesus Pacheco, Isaac Pergher, José Antônio Valle Antunes Junior and Guilherme Luís Roehe Vaccaro
The purpose of this study is to compare different models integrating the TOC and Lean approaches.
Abstract
Purpose
The purpose of this study is to compare different models integrating the TOC and Lean approaches.
Design/methodology/approach
The models of reference were identified through a comprehensive literature review. A qualitative and comparative analysis was carried out by pointing out the strengths, weaknesses and gaps of models integrating the TOC and Lean based on the production system requirements.
Findings
The findings indicate that these models can be improved by introducing aspects related to the system structure such as main key performance indicators, type of shop layout and performance metrics to evaluate the improvements implemented in the production system. The results provided evidence that the TOC and Lean are complementary approaches, and the individual gaps of each approach seem to be, in the most part, offset by the virtues of the other.
Practical implications
This study enables decision makers and industrial managers to evaluate the practices adopted in the production environment, as well as the use of the different set of continuous improvement practices. This article also minimizes the literature gap regarding whether and how integrated Lean and TOC approach can be used in the firms.
Originality/value
This study contributes to the body of literature on Lean by comparing three different models integrating Lean and the TOC. Furthermore, a research agenda is suggested for future research aimed at developing new models integrating both approaches, aiming to increase the competitiveness of the production systems.
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The general principles of TOC can be applied to improve the performance of service organizations. A classified model is proposed for such applications based on Schmenner’s…
Abstract
The general principles of TOC can be applied to improve the performance of service organizations. A classified model is proposed for such applications based on Schmenner’s classification of service organizations. The flow of “material”, inventory and throughput is identified at various service organizations of the four quadrants of the service matrix. The definition of these terms might be dependent on the service. Since system constraint is at the heart of TOC, the recognition of the nature of organization constraint is the first step towards continuous improvement.
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David W. Parker, Nicholas Parsons and Fitri Isharyanto
The purpose of this paper is to explore the benefits of integrating the theory of constraints (TOC), resources-based theory (RBT), resource advantage theory (RAT), with a…
Abstract
Purpose
The purpose of this paper is to explore the benefits of integrating the theory of constraints (TOC), resources-based theory (RBT), resource advantage theory (RAT), with a structured project-based methodology e.g., Project Management Body of Knowledge. This paper describes each theory and explores what benefits a unified model would bring to project management. This paper represents the conceptual development of an integrated framework that will be tested in a range of project management scenarios in various industrial sectors.
Design/methodology/approach
Extant literature is used to develop a conceptual framework of an integrated model that will be tested in the field for robustness. The model has been applied to published projects to identify its strengths and weaknesses.
Findings
The work shows important implications for improved success of projects from the use of TOC, RAT and resource dependence theory (RDT). Specifically, it emphasizes the need for application of strategic theories to project management.
Research limitations/implications
While TOC, RAT and RDT are well established in the context of organization theory, there is limited application in project management. Moreover, the model has yet to be applied in the field. The hypotheses identified in this research are currently being tested using field-based surveys.
Practical implications
The research falls short in addressing some resources, e.g. innovation, tacit knowledge and decision making methods in traditional project management context. Therefore, identifying these critical resources in future work and exploiting them as the means of improving project performance would enhance the success of project-based management.
Social implications
Project management is an emergent discipline and a project is temporary in nature. Therefore, new ideas and development of theories for project management practices are required. This innovative research, for example, may change the way projects are executed in future.
Originality/value
This paper examines the components of a successful project according to the iron triangle, i.e. scope, quality, time and cost. However, through the application of TOC, RAT and RDT into an integrated project-based management framework gives new insights to resources management.
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Victoria J. Mabin, Steve Forgeson and Lawrence Green
Re‐examines traditional views on change management, in particular the resistance to change, and to suggest alternative views and a practical approach for better managing change…
Abstract
Re‐examines traditional views on change management, in particular the resistance to change, and to suggest alternative views and a practical approach for better managing change. The literature on change management contains numerous prerequisites for successful change, with a predominantly negative view on the issue of resistance to change. Some authors have argued for the positive utility of resistance, but have lamented a lack of management theories which support this view. Describes a management methodology called the theory of constraints (TOC) which views resistance as a necessary and positive force, and we demonstrate how it was applied in a case study involving a bank merger. Reviews how TOC handles the various types of resistance identified in the change management literature, and posit that the TOC framework helps lead and manage change by providing practical guidance on, inter alia, situational assessment, assumption surfacing, conflict resolution, planning and implementation of successful change.
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Fernando Bernardi de Souza and Sílvio R.I. Pires
The purpose of this paper is to systematically describe the key practical contributions of the theory of constraints (TOC) to outbound (distribution) logistics.
Abstract
Purpose
The purpose of this paper is to systematically describe the key practical contributions of the theory of constraints (TOC) to outbound (distribution) logistics.
Design/methodology/approach
Based on theoretical research, this paper presents the main practical aspects of the approach suggested by TOC to outbound logistics and discusses the assumptions upon which it is based.
Findings
This paper corroborates the thesis defended by TOC, according to which the current ways of managing outbound logistics, based mainly on sales forecasts lead to difficulties in handling trade‐offs between logistics (stock and transportation) costs and stock‐out levels.
Research limitations/implications
The reported research is of a theoretical nature.
Practical implications
TOC offers a proposal that is complementary in many aspects and very distinguishable in others about the way some key processes and elements of supply chain management (SCM) are managed, especially outbound logistics.
Originality/value
Considering the dearth of papers dealing with the conceptual articulation and organization of this subject, the paper contributes to systematize the knowledge currently available about the contributions of the TOC to outbound logistics, highlighting the practical implications of applying TOC to outbound logistics.
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Seonmin Kim, Victoria Jane Mabin and John Davies
This paper seeks to provide a timely review of developments to the theory of constraints (TOC) body of knowledge, particularly the TOC thinking processes as reported in the public…
Abstract
Purpose
This paper seeks to provide a timely review of developments to the theory of constraints (TOC) body of knowledge, particularly the TOC thinking processes as reported in the public domain peer‐reviewed literature, and to present an analysis of the nature of the thinking processes (TPs), and their methodological and applicatory evolution.
Design/methodology/approach
Research reported in the public domain from 1994 to early 2006, as peer‐reviewed journal articles or as papers published in refereed conference proceedings, was reviewed to summarize key research issues that have been studied and to suggest future research. The literature is categorized along several dimensions and according to several emergent and self‐defined clusters that relate to application area, methodology and epistemology.
Findings
This paper presents a comprehensive review of the TP literature, identifies specific publication and research gaps as they relate to the defined classification and also provides some future research topics.
Research limitations/implications
The review addresses only the peer‐reviewed literature spanning a limited period from 1994 to the time of the current work in early 2006 – that is the period since the publication of Goldratt's It's Not Luck. In doing so, the review complements the work of others for the period to 2000, extends previous reviews beyond 2000, whilst providing an additional focus on the TPs.
Practical implications
This paper provides useful insights about the development of the TOC body of knowledge, especially as it relates to the development and reported use of the TPs as stand‐alone tools or in tandem with other tools or methods. It provides a valuable summary, for academics and practitioners, of the developing TOC body of knowledge that has been reported in the peer‐reviewed literature.
Originality/value
The development of the TOC body of knowledge has been largely practice‐led, manifested not only in the diverse nature of application areas and in the diverse use of TOC tools, but also in the broader evolution of TOC methodology, methods and tools. Earlier reviews of the literature in this journal preceded many of the developments documented here. This paper will help position the many TOC methods and tools in relation to one another, as well as capturing developments in multi‐methodological usage across several domains.
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R.P. Mohanty, D. Mishra and T. Mishra
The purpose of this paper is to study the various modalities of production outsourcing service and compare three different models, namely: standard accounting, theory of…
Abstract
Purpose
The purpose of this paper is to study the various modalities of production outsourcing service and compare three different models, namely: standard accounting, theory of constraints (TOC) and linear programming (LP) enhancement of TOC.
Design/methodology/approach
This is a diagnostic study concerned with accurately describing the characteristics of outsourcing phenomenon and defining clearly the objective function and the associated constraints. The optimization models have been constructed and analyzed in a real‐life situation by collecting data with sufficient precision.
Findings
This paper brings out distinctively different options for outsourcing services and compares the results with the findings available in literature. The significant finding is that it is an imperative to evaluate the outsourcing approaches from a situational perspective governed by internal and external constraints imposed by competitive forces.
Research limitations/implications
This research does not embrace the sensitivity of various cost parameters as well as the fuzziness of the dynamics of competition.
Practical implications
The models and the analyses would facilitate systemic decision support to production, procurement and marketing managers engaged in the competitive value chain. For successful outsourcing, the business goals must be validated with financial justification. Outsourcing is not only carried out in cases of non‐availability of resources internally, or to meet the peak demand, but also it helps in cash infusion, reduction in operating costs and restructuring of resources.
Originality/value
Manufacturing organizations should not only implement outsourcing in an ad hoc manner but should try to innovate on different outsourcing practices and should make attempts to study and analyze methods that are better and the best to attain competitive advantage.
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