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Article
Publication date: 8 May 2018

Roberta Fusaro and Nicole Viola

This paper aims to propose a methodology for a safety and reliability assessment for the conceptual and preliminary design of very complex and disrupting innovative…

Abstract

Purpose

This paper aims to propose a methodology for a safety and reliability assessment for the conceptual and preliminary design of very complex and disrupting innovative systems like trans-atmospheric vehicles. The proposed methodology differs from existing ones because it does not rely on statistical data at aircraft-level but exploits the statistical population at components-level only. For the sake of clarity, the paper provides some preliminary results of the application of the methodology at system level. The example deals with the safety and reliability assessment of a very complex propulsion system aimed at guaranteeing vertical take-off and landing capabilities of a suborbital vehicle.

Design/methodology/approach

The proposed methodology is strongly based on a systems engineering approach. It exploits safety and reliability assessment analyses which have already been developed in both aeronautical and space engineering domains, but it combines them in an innovative way to overcome the lack of statistics at aircraft level. The methodology consists of two different steps: a qualitative top-down process, allowing a functional and physical decomposition of the transportation system and a following quantitative bottom-up approach, which provides the estimation of system-level reliability and safety characteristics starting from the statistical estimation of the components’ characteristics.

Findings

The paper presents a new methodology for the preliminary reliability and safety assessment of innovative transportation systems, such as hypersonic transportation systems. The envisaged methodology will overcome the poorness of statistical data that is usually affecting the conceptual design of breakthrough systems.

Research limitations/implications

The paper shows the application of the articulated methodology to a limited case study. A complete example of application of the methodology to estimate safety and reliability characteristics at vehicle level will be provided in feature works.

Practical implications

The methodology has been proposed to be exploited in international research activities in the field of hypersonic transportation systems. Furthermore, a massive application of this approach would allow to create a database for the generation and the update of semi-empirical models focused on high-level estimations of reliability, availability, maintainability and safety (RAMS) characteristics. Moreover, the proposed safety assessment has been conceived to be fully integrated within a typical conceptual design process.

Originality/value

The existing literature about safety and reliability assessment at the early design stages proposes pure statistical approaches which are usually not applicable to highly innovative products, where the statistical population is not existing, for example, in the case of trans-atmospheric vehicles. This paper describes how to overcome this problem, through the exploitation of statistical data at components-level only through the combination of these data to estimate RAMS characteristics at aircraft-level thanks to functional analysis, concept of operations and typical safety assessment tools, like functional hazard analysis, failure mode and effect analysis, reliability block diagram and fault tree analysis.

Details

Aircraft Engineering and Aerospace Technology, vol. 90 no. 4
Type: Research Article
ISSN: 1748-8842

Keywords

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Article
Publication date: 11 November 2013

Mina Serajian and Babak Akhgar

There exist large gaps in research about social networking services, for example in their development. Most of these networks lack any scientific or engineered base in…

Abstract

Purpose

There exist large gaps in research about social networking services, for example in their development. Most of these networks lack any scientific or engineered base in their designing and developing processes. In this paper, a holistic model will be described for the development of social network sites and parts of a scientific social network (SSN) will be developed using it. Users of this site are faculties, students and R&D personnel of a university or an enterprise. The paper aims to discuss these issues.

Design/methodology/approach

In this paper, a SSN site is designed along with a brief description of a social network site development methodology. The structure of methodology is based on conceptual template for the construction of a methodology. Using this methodology, a group of 50 users (from all three types of end-users) have been chosen to be interviewed about their expectations from the mentioned site.

Findings

Based on the interview, it was discovered that their view about social networks is inflexible and they do not have any new visions about functionalities of these networks. Their emphasis was mostly on exchanging and sharing role of this site. Design and development of social network sites based on the proposed methodology is easily understandable because of using state machine notations.

Originality/value

The innovation of this study is to propose a soft model for social network sites design based on these site's special specifications and regarding differences of them with other regular ones. This can pave the way for investors of such sites for setting up distinct social sites with new functionalities in an innovative approach.

Details

Journal of Systems and Information Technology, vol. 15 no. 4
Type: Research Article
ISSN: 1328-7265

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Article
Publication date: 28 October 2014

Ravi S. Reosekar and Sanjay D. Pohekar

The main aim of the present study is to explore field of Six Sigma and discover the limitation of the present research work. The study also tries to find emerging aspects…

Abstract

Purpose

The main aim of the present study is to explore field of Six Sigma and discover the limitation of the present research work. The study also tries to find emerging aspects, trends and future directions and explore unfocused areas of Six Sigma. The present study involves an analysis of 179 research articles published from 1995 to 2011 in 52 selected reputable journals.

Design/methodology/approach

The methodology of critical assessment involves selection and classification of 179 research articles on Six Sigma. The selected articles are classified by: time distribution of articles, research methodology, research stream, authorship patterns, sector-wise focus of articles, integration with other manufacturing philosophies, implementation status and performance measurement of the models or framework. Then, the suggestions for the future scope of research possibilities and development are identified.

Findings

The study provides a taxonomical and integrated review of articles. Further, this study provides perspectives on conceptualization and various critical parameters for research. Through this literature review, many issues are addressed which have not previously been adequately covered. The findings include: increase in empirical nature of research articles, need for spreading research in the field of Six Sigma implementation, need for more interregional research collaborations, need for integration of Six Sigma philosophy with other philosophies and lack of implementation, i.e. testing and validation of the proposed models or frameworks by researchers.

Practical implications

The present study has explored an unfocused area of Six Sigma which will help future researchers to concentrate on the grey areas of Six Sigma. The study will help professionals to get a comprehensive database of Six Sigma articles and their use in practical situation. The results obtained from the study are expected to help researchers, academics and professionals to focus on the growth, pertinence and research developments to implement Six Sigma principles.

Originality/value

This paper will be of great help for those carrying out research in Six Sigma field including academics and practitioners in terms of Six Sigma growth describing the trends, sources and findings. The unique feature of this research is the large sample size and a time span of 16 years (1995-2011). The unique feature of this research is the large sample size and a time span of 16 years (1995-2011).

Details

International Journal of Lean Six Sigma, vol. 5 no. 4
Type: Research Article
ISSN: 2040-4166

Keywords

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Article
Publication date: 12 August 2020

Nurul Indarti, Andy Susilo Lukito-Budi and Azmi Muhammad Islam

This study aims to explore existing study trends in the halal supply chain (HSC) field as an extension of supply chain studies. Upon examining multiple journal ranks and…

Abstract

Purpose

This study aims to explore existing study trends in the halal supply chain (HSC) field as an extension of supply chain studies. Upon examining multiple journal ranks and citation profiles, these trends cover research themes, methodologies, settings (country and data analysis level) and their interactions.

Design/methodology/approach

The study followed a systematic, mixed-method review to pinpoint the HSC research themes. The Publish or Perish software, with specific criteria, was used to retrieve and filter 87 HSC articles from 2009 to 2019 from the Google Scholar database. Then, an input–process–output framework was used to classify and discuss potential future research.

Findings

This study concludes that HSC research is still in early development. Five themes consisting of 24 different topics were found: the engagement process, quality control assurance, critical success factors, the production and distribution process and HSC operations support. Most of the HSC studies followed conceptual and qualitative interview methods, with special reference to Muslim-majority countries and organization-level analysis. Within one decade, the number of HSC publications grew significantly, though their presentation is mainly in unindexed journals and their citation rate is low. This study thus proposes three main future HSC research points: HSC consequences, processes and antecedents.

Practical implications

Possible practical implications can be expected from the authors’ proposed empirical studies as guidelines to formulate and promote HSC implementation.

Originality/value

No comprehensive HSC research review exists in the literature. This study intends to fill this void by charting cumulative knowledge and proposing a roadmap for future research endeavors.

Details

Journal of Islamic Marketing, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1759-0833

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Article
Publication date: 1 May 1993

Jack Meredith

Identifies the significant role of conceptual research methods intheory building and contrasts it with the theory‐testing researchcurrently prevalent in operations…

Abstract

Identifies the significant role of conceptual research methods in theory building and contrasts it with the theory‐testing research currently prevalent in operations management. The research stages of description, explanation and testing are used to distinguish between theory building and theory testing. Short‐circuiting any one of these stages results in dysfunctional research activities which produce war stories, black boxes, or ivory‐tower prescriptions. Defines some terms relevant to conceptual research methods and describes different conceptual classification schemes. Finally, discusses the differences between conceptual models, frameworks, and theories and illustrates each method with examples from the literature.

Details

International Journal of Operations & Production Management, vol. 13 no. 5
Type: Research Article
ISSN: 0144-3577

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Article
Publication date: 22 February 2021

Sushila Soriya and Parthvi Rastogi

This study aims to furnish the systematic literature review on integrated reporting (IR) and answer three research questions: How has the IR concept been developed…

Abstract

Purpose

This study aims to furnish the systematic literature review on integrated reporting (IR) and answer three research questions: How has the IR concept been developed recently across the different countries? How can the literature of IR be allocated among different focus areas/themes? What are the future opportunities available for IR?

Design/methodology/approach

The methodology involves selection, classification and categorization of 110 articles on IR into their focus areas, journals, time distribution, continent-wise distribution, research methodologies and keywords analysis.

Findings

The findings of the study suggest that there is a need of the following: increasing the case studies and empirical research in developing assurance models, analysis of the perception of shareholders in Asian countries, harmonization of financial and non-financial standards, research on the IR of non-listed companies.

Practical implications

It provides insights to practitioners regarding the challenges faced by the economies and internal organization. It might help researchers and academics to focus on developments of IR in different countries. It might also help regulators to develop some policies, models and frameworks for its future implementation.

Originality/value

It furnishes the outline of 110 articles published in eminent journals from the year 2011 to beginning of 2020.

Details

Journal of Financial Reporting and Accounting, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1985-2517

Keywords

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Article
Publication date: 25 September 2019

Yan Jiang, Fu Jia, Constantin Blome and Lujie Chen

This paper aims to set out the development, based on the extant literature, an integrated conceptual framework for the emergent field of sustainable global sourcing (GS…

Abstract

Purpose

This paper aims to set out the development, based on the extant literature, an integrated conceptual framework for the emergent field of sustainable global sourcing (GS) that synthesizes its antecedents, GS practices and sustainable performance.

Design/methodology/approach

Conceptual theory building combined with content analysis is used to develop a framework and propositions representing a middle-range theory of sustainable GS. A literature review of the 89 most influential papers is followed by a further discussion based on the resource orchestration perspective (ROP) to advance an integrated conceptual framework.

Findings

Three main themes are identified from the literature as antecedents, GS practices and sustainable performance, with each theme being detailed in a variety of constructs. Based on the ROP, the relationships between these constructs are revealed, and therefore, an integrated conceptual framework is advanced via three sets of propositions in recourse orchestration breadth, recourse orchestration depth and resource orchestration evolution, respectively. Eight directions for future research are further proposed.

Originality/value

First, this study provides a comprehensive framework for future study in the emergent field of sustainable GS. Second, the authors contribute to theory development by proposing a ROP to explore the GS practices towards sustainability. Third, the future research directions we proposed can benefit scholars interested in the overlapping areas of GS and sustainability.

Details

Supply Chain Management: An International Journal, vol. 25 no. 1
Type: Research Article
ISSN: 1359-8546

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Article
Publication date: 5 March 2018

J. Muraliraj, Suhaiza Zailani, S. Kuppusamy and C. Santha

Literature reviews are a pervasive aspect in research. An ever mounting field such as Lean Six Sigma requires a perpetual touch on the subject to accentuate insights that…

Abstract

Purpose

Literature reviews are a pervasive aspect in research. An ever mounting field such as Lean Six Sigma requires a perpetual touch on the subject to accentuate insights that can be researched about. The purpose of this paper is to address the published literatures in the field of Lean Six Sigma through multiple criterion for an enhanced understanding of the subject matter through summarizing its current trends, uncovering existing literature gaps and revealing opportunities for future research in the field.

Design/methodology/approach

The literature review on Lean Six Sigma field spans around 17 years that includes peer-reviewed journals from management, business, engineering, healthcare, manufacturing, military among the many disciplines. The study uses a content analysis approach in which several dimensions of the literature were analysed: purpose or focus of study, years of publication, journal name or publications, methodologies, theories used, country of study, industry sub-sectors, active authors in the field, critical success factors, barriers and challenges and the most contribution of Lean Six Sigma papers by universities.

Findings

Eleven important findings from the analysis were summarized among them; the field of Lean Six Sigma had begun to grow significantly since the new millennium particularly after the 2004-2007 or 2008 period; standalone concepts of Lean and Six Sigma are highly researched compared to the integrated concepts; large proportion of perspective, conceptual and descriptive based studies; lack of empirical validity on the fusion between Lean and Six Sigma; lack of theoretical based studies, etc.

Research limitations/implications

The study is limited to 102 journals in commonly searched databases in the subject matter which produced 261 journal papers. This study seeks to broaden the summary of studies done under the keyword “Lean Six Sigma”.

Originality/value

The review analysis uses a content analysis approach in search of valuable gaps in existing research. The study found 261 papers from 102 journals that were published over the past seventeen years (2000-2016). This paper provides scholars, practitioners and managers with insights on the present trends and focus of Lean Six Sigma in addition to what else are lacking in the subject matter, which could pave the way for future research and practical endeavours.

Details

International Journal of Lean Six Sigma, vol. 9 no. 1
Type: Research Article
ISSN: 2040-4166

Keywords

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Article
Publication date: 1 January 2006

Patrick J. Murphy, Jianwen Liao and Harold P. Welsch

To interpret and explain evolution in entrepreneurial thought, using the application of history to unify the extant and wide‐ranging concepts underlying the field to…

Abstract

Purpose

To interpret and explain evolution in entrepreneurial thought, using the application of history to unify the extant and wide‐ranging concepts underlying the field to detect a conceptual foundation.

Design/methodology/approach

A conceptual approach is taken, the paper undertaking a delineation of how past theory has brought about the field's current state and an identification of some conceptual areas for future advancement.

Findings

The importance and impact of the entrepreneurship field is increasing in academic and practical settings. A historical view on the conceptual development of entrepreneurial thought provides a lens for scholars as well as practitioners to interpret and explain their own entrepreneurial activity or research and formulate new questions.

Originality/value

The paper aids scholars and researchers to interpret and explain entrepreneurial activity.

Details

Journal of Management History, vol. 12 no. 1
Type: Research Article
ISSN: 1751-1348

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Article
Publication date: 13 June 2008

Craig R. Carter and Dale S. Rogers

The authors perform a large‐scale literature review and use conceptual theory building to introduce the concept of sustainability to the field of supply chain management…

Abstract

Purpose

The authors perform a large‐scale literature review and use conceptual theory building to introduce the concept of sustainability to the field of supply chain management and demonstrate the relationships among environmental, social, and economic performance within a supply chain management context.

Design/methodology/approach

Conceptual theory building is used to develop a framework and propositions representing a middle theory of sustainable supply chain management (SSCM).

Findings

The authors introduce the concept of sustainability – the integration of environmental, social, and economic criteria that allow an organization to achieve long‐term economic viability – to the logistics literature, and position sustainability within the broader rubric of SSCM. They then present a framework of SSCM and develop research propositions based on resource dependence theory, transaction cost economics, population ecology, and the resource‐based view of the firm. The authors conclude by discussing managerial implications and future research directions, including the further development and testing of the framework's propositions.

Originality/value

This paper provides a comprehensive review of the sustainability literature, introduces sustainability to the field of supply chain management, and expands the conceptualization of sustainability beyond the triple bottom line to consider key supporting facets which are posited to be requisites to implementing SSCM practices. The use of conceptual theory building to develop theoretically based propositions moves the concept of sustainability from a relatively a‐theoretical treatment toward new theory in supply chain management.

Details

International Journal of Physical Distribution & Logistics Management, vol. 38 no. 5
Type: Research Article
ISSN: 0960-0035

Keywords

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