A new design tool for DFA/DFD based on rating factors

2015 ◽  
Vol 35 (4) ◽  
pp. 348-357 ◽  
Author(s):  
Devdas Shetty ◽  
Ahad Ali

Purpose – The purpose of this paper is to develop a tool design for assembly and disassembly using rating factors. Design engineers need an automated tool to effectively analyze the ease of assembly and disassembly of the products or subassemblies. A good assembly design helps in easier disassembly and thus makes it easier to service, repair and maintain. Reuse and recycling aspects are given importance in the present days due to environmental regulations. Designers now use the life cycle design of the products. This creates an environment for the successful application of design for manufacturing, assembly and disassembly tools. This paper addresses some of those issues. Design/methodology/approach – The analysis of a product design for ease of assembly/disassembly depends largely on whether the product is to be assembled/disassembled manually, with automation or a combination of these. For example, the criteria for ease of automatic feeding and orienting are much more stringent than those for manual handling of parts. The new design for assembly/disassembly (DFA/DFD) evaluation tool explained here enables the designer to review the existing design. This paper examines the existing techniques in the area of DFA/DFD and suggests a new methodology based on rating factors. Excel is used to create the interface for the user. Other popular methods were examined such as Boothroyd-Dewhurst, Lucas. Access, reuse, removal, tool, task and time method and assembly score method (Poli) were used as a base for this study. Findings – The end result of this research is a new approach linked to assembly/disassembly rating score. Originality/value – The new DFA/DFD evaluation tool enables the designer to review the existing DFA and DFD difficulties.

Author(s):  
Devdas Shetty ◽  
Vishwesh Coimbatore ◽  
Claudio Campana

Design engineers need an automated tool to effectively analyze the ease of assembly & disassembly of the subassemblies and the innovative products they create. A good assembly design makes it easier to service, easier to repair and maintain. Due to current environmental regulations the designers are forced to think about the life cycle of a product, recycling and reuse aspects of the products from the very beginning. This creates an environment for efficient implementation of design for manufacturing tools and techniques. A New Design for Assembly / Disassembly (DFA/DFD) Evaluation methodology explained here enables the designer to review the design for assembly and disassembly difficulties by considering several contributing factors and their importance to successful product creation. The technique is based on the criteria of “Rating Factors”. A spreadsheet format is used to create the front end interface for the user and to include all the influencing factors. The major parameters considered for the study are access, tool, task, re-use, removal, recyclability. Since the product maintenance is an important factor additional maintenance related issues such as spare parts, waiting time, priority and cost are considered as rating factors. The new methodology was compared with other existing techniques and found to be valid and useful to manufacturing industries.


2019 ◽  
Vol 76 (1) ◽  
pp. 333-353 ◽  
Author(s):  
Stephen Macdonald ◽  
Briony Birdi

Purpose Neutrality is a much debated value in library and information science (LIS). The “neutrality debate” is characterised by opinionated discussions in contrasting contexts. The purpose of this paper is to fill a gap in the literature by bringing these conceptions together holistically, with potential to deepen understanding of LIS neutrality. Design/methodology/approach First, a literature review identified conceptions of neutrality reported in the LIS literature. Second, seven phenomenographic interviews with LIS professionals were conducted across three professional sectors. To maximise variation, each sector comprised at least one interview with a professional of five or fewer years’ experience and one with ten or more years’ experience. Third, conceptions from the literature and interviews were compared for similarities and disparities. Findings In four conceptions, each were found in the literature and interviews. In the literature, these were labelled: “favourable”, “tacit value”, “social institutions” and “value-laden profession”, whilst in interviews they were labelled: “core value”, “subservient”, “ambivalent”, and “hidden values”. The study’s main finding notes the “ambivalent” conception in interviews is not captured by a largely polarised literature, which oversimplifies neutrality’s complexity. To accommodate this complexity, it is suggested that future research should look to reconcile perceptions from either side of the “neutral non-neutral divide” through an inclusive normative framework. Originality/value This study’s value lies in its descriptive methodology, which brings LIS neutrality together in a holistic framework. This framework brings a contextual awareness to LIS neutrality lacking in previous research. This awareness has the potential to change the tone of the LIS neutrality debate.


2018 ◽  
Vol 30 (2) ◽  
pp. 152-158 ◽  
Author(s):  
Rachna Sharma ◽  
Alka Goel

Purpose The paper focused onto the development of microcapsules by using two essential oils. It proposes the uses of eucalyptus oil and cedarwood oil as a natural insecticide. The purpose of this paper is to demonstrate the application of developed microcapsules to impart insect repellency on textile substrate. Design/methodology/approach The paper opted for an experimental study using two essential oils and gum in formations of microcapsules through a simple coaseravtion encapsulation technique. The developed solution was analyzed, including confirmation of size and structure through. Application of developed finish on substrate was also undertaken to prove better ability as repellent fabric. Findings The paper highlights useful invention of microencapsulated fabric developed with the combination of gum acacia and eucalyptus oil as core and shell material. The developed fabric has better ability to repel silverfish as compared to microencapsulated fabric developed with gum acacia (shell) and cedarwood oil (core). Research limitations/implications Due to the lack of time and less availability of essential oils, only two oils were used to test the insect repellent behavior. Practical implications This paper fulfills an identified need, it includes implications for the development of a very useful natural insecticide to repel silverfish (Lepisma saccharina) insect. This insect is a very common problem found in cloth wardrobes and bookshelves; it mainly attacks the fabric with cellulosic content and starch. Social implications Society will get major benefit of using these microencapsulated finished fabrics, which repel silverfish from their home and keep their clothing and books safe for longer period. The natural fragrance and medicinal benefits of these essential oils can never be ignored. Originality/value This study sets a new approach to repel insects like silverfish from the bookshelves and clothing wardrobes. A layer of insect repellent microencapsulated finished fabric can be added in these shelves and wardrobes. It is an eco-friendly approach of using natural essential oils instead of chemical insecticides.


2015 ◽  
Vol 34 (6) ◽  
pp. 496-509 ◽  
Author(s):  
W. J. Greeff

Purpose – The purpose of this paper is to make a case for contextual interpretivism in managing diversity in organizational settings, specifically in its bearing on internal communication, going against the dominating functionalistic stance of venerated and ubiquitous approaches. Design/methodology/approach – Qualitative and quantitative methodologies were employed to explore the potential of contextual interpretivism within the mining and construction industries of South Africa, due to the fecund diversity context of its employee population. Findings – This paper points to the enriched understanding that could result from following a contextual interpretivistic approach to internal communication for diversity management, and in so doing discusses the ways in which this could take hold in organizations through the application of germane theoretical assertions of revered internal organizational communication literature, specifically the excellence theory and communication satisfaction. Research limitations/implications – The main limitation to this research is the restricted generalizability of its empirical research. Further research is required for the exploration of the central premise in other organizational contexts. Practical implications – The paper provides insights into the ways in which organizations could approach its diversity management so as to speak to more than just the functional aspects thereof, and rather to the importance of nurturing an understanding of employees’ interpretation of the organization’s diversity endeavors. Originality/value – The implications of applying a new approach to diversity management in organizational settings is discussed and argued, offering an empirical application thereof, which gives way to practical, data-driven recommendations for use in organizational settings.


2016 ◽  
Vol 36 (1) ◽  
pp. 51-59 ◽  
Author(s):  
Hamid Yilmaz ◽  
Mustafa Yilmaz

Purpose – Within team-oriented approaches, tasks are assigned to teams before being assigned to workstations as a reality of industry. So it becomes clear, which workers assemble which tasks. Design/methodology/approach – Team numbers of the assembly line can increase with the number of tasks, but at the same time, due to physical situations of the stations, there will be limitations of maximum working team numbers in a station. For this purpose, heuristic assembly line balancing (ALB) procedure is used and mathematical model is developed for the problem. Findings – Well-known assembly line test problems widely used in the literature are solved to indicate the effectiveness and applicability of the proposed approach in practice. Originality/value – This paper draws attention to ALB problem in which workers have been assigned to teams in advance due to the need for specialized skills or equipment on the line for the first time.


2014 ◽  
Vol 21 (3) ◽  
pp. 368-384 ◽  
Author(s):  
Lidija Breznik ◽  
Robert D. Hisrich

Purpose – The purpose of this paper is to provide insights into the relationship between dynamic capabilities and innovation capabilities. It links dynamic capability with innovation capability and indicates the ways they can be related. Design/methodology/approach – The relationships between dynamic and innovation capability were investigated through a systematic literature review. Findings – The review indicates that common characteristics exist between of the both fields, which demonstrate six relationships. Additionally, findings show some inconsistencies and even contradictions. Originality/value – In this paper, the authors have compared dynamic capabilities, a relatively new approach in the field of strategic management, with innovation capabilities, a widely recognised crucial domain for sustained competitiveness. Since both areas address issues that are essential to today's environment, future research should seek to clarify both concepts, by undertaking some new research and developing comprehensive and unambiguous framework.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Ronny Alexander Zayas-Mateo ◽  
Ángel Rafael Martínez-Lorente

Purpose ISO 9001 is applied by hundreds of thousands of companies throughout the world. For this reason, its effect on company results has been extensively studied. However, the results of those studies are inconclusive and sometimes contradictory. More in-depth research, with a new approach, is therefore necessary. The purpose of this paper is to analyse whether ISO 9001-certified companies suffered the effects of the financial and economic crisis of 2007–2008 to a lesser degree than non-certified ones. Design/methodology/approach A set of 179 companies certified by ISO 9001:2008 and 154 non-certified ones were analysed, as well as the accounting figures for net sales and operating income (EBIT: earnings before interest and taxes) from 2004 to 2012. Findings Companies from the industry and services sectors showed different results. Certified industrial companies achieved better outcomes than their non-certified counterparts. However, the deviations in outcomes were not significant for services companies. Research limitations/implications One limitation of this study is that companies’ official results are not always their true results. Another limitation is that having to do with the criteria followed to suppress extreme cases, which is always subjective. Furthermore, the implications of the results could be of use for those managers who are responsible for implementing ISO 9001 and for deciding whether obtaining the ISO 9001 certification would be beneficial to their companies. Originality/value This study constitutes a new approach for the assessment of the benefits of the ISO 9001 certification.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Dana M. Griggs ◽  
Mindy Crain-Dorough

PurposeThe purposes of this paper are to provide a description of AI and to document and compare two applications of AI, one in program evaluation and another in an applied research study.Design/methodology/approachFocus groups, interviews and observations were used to gather rich qualitative data which was used to detail Appreciative Inquiry's value in evaluation and research.FindingsAI aided the researcher in connecting with the participants and valuing what they shared. In both studies, the use of AI amassed information that answered the research questions, provided a rich description of the context and findings, and led to data saturation. The authors describe and compare experiences with two applications of AI: program evaluation and a research study. This paper contributes further understanding of the use of AI in public education institutions. The researchers also explore the efficacy of using AI in qualitative research and recommend its use for multiple purposes.Research limitations/implicationsLimitations occurred in the AI-Design Stage by using a positive viewpoint and because both program and partnership studied were new with limited data to use for designing a better future. So, the authors recommend a revisit of both studies through the same 4D Model.Practical implicationsThis manuscript shows that AI is useful for evaluation and research. It amplifies the participants' voices through favorite stories and successes. AI has many undiscovered uses.Social implicationsThrough the use of AI the authors can: improve theoretical perspectives; conduct research that yields more authentic data; enable participants to deeply reflect on their practice and feel empowered; and ultimately impact and improve the world.Originality/valueAI is presented as an evaluation tool for a high-school program and as a research approach identifying strengths and perceptions of an educational partnership. In both studies, AI crumbled the walls that are often erected by interviewees when expecting to justify or defend decisions and actions. This paper contributes further understanding of the use of AI in public education institutions.


2019 ◽  
Vol 24 (1) ◽  
pp. 147-169 ◽  
Author(s):  
Britta Søgaard ◽  
Heather Dawn Skipworth ◽  
Michael Bourlakis ◽  
Carlos Mena ◽  
Richard Wilding

PurposeThis paper aims to explore how purchasing could respond to disruptive technologies by examining the assumptions underlying purchasing strategic alignment and purchasing maturity through a contingency lens.Design/methodology/approachThis study uses a systematic review across purchasing maturity and purchasing strategic alignment literature. This is supplemented with exploratory case studies to include practitioners’ views.FindingsThis research demonstrates that neither purchasing maturity nor purchasing strategic alignment are suitable approaches to respond to disruptive technologies. Purchasing maturity does not allow purchasing managers to select relevant practices. It also shows no consideration of any contingencies, which practitioners highlight as important for the selection of practices. Purchasing strategic alignment includes the company strategy as a contingency but does not provide any practices to choose from. It does not include any other contextual contingencies considered important by practitioners. The findings indicate that linking the two research streams may provide a more suitable approach to responding to disruptive technologies.Research limitations/implicationsThis research demonstrates the requirement to develop a new approach to responding to disruptive technologies, by linking purchasing maturity and purchasing strategic alignment to contextual contingencies. This is a currently unexplored approach in academic literature, which refutes the generally accepted premise that higher maturity unilaterally supports a better positioning towards technological disruption. This research also highlights a requirement for practitioners to shift their approach to “best practices”.Originality/valueThis is the first research to systematically review the relationships between purchasing maturity and purchasing strategic alignment. It adds to contingency theory by suggesting that purchasing maturity models can support the achievement of strategic alignment. Also, future research directions are suggested to explore these relationships.


2019 ◽  
Vol 35 (1) ◽  
pp. 6-8
Author(s):  
Davide Settembre-Blundo ◽  
Alfonso Pedro Fernández del Hoyo ◽  
Fernando Enrique García-Muiña

Purpose The purpose of this paper is to analyze the strategic management of risks in companies from a marketing management perspective and to provide some guidance for management practice. Design/methodology/approach This paper presents the authors’ viewpoint, and it conceptualizes a new approach to risk management. Findings The conceptual discussion has opened up a possible new way for enterprises, especially SMEs, to start taking a strategic approach to risk. Originality/value This paper would like to contribute to the current debate on the role of marketing function in managerial practice beyond the classic four Ps.


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