ESTIMATING THE INCIDENCE OF FOODBORNE SALMONELLA AND THE EFFECTIVENESS OF ALTERNATIVE CONTROL MEASURES

Foodborne illness incidence, Salmonella, Delphi method, United Kingdom, Food Consumption/Nutrition/Food Safety,

Grounding Theory from Delphi Studies

The Delphi method is recommended for exploratory research in emerging research areas. Despite earlier suggestions for using the Delphi method for theory creation, few analytical tools are provided for this purpose. However, Grounded Theory is especially devoted to creating theories from qualitative data. This paper describes an enhanced Delphi method which integrates data analysis techniques from Grounded Theory. The resulting Grounded Delphi Method (GDM) improves Delphi studies by bringing in a data collection technique that focuses explicitly on the identification of the reasons and consequences for issues, ranked by experts. Moreover, the techniques of open and axial coding support the discovery of theoretical concepts from the initial Delphi issues. In turn, the ranking process of the Delphi method provides a rigorous means for selecting core categories for theory development, which decreases researcher interference on this issue

The Delphi method: methodological issues arising from a study examining factors influencing the publication or non-publication of mental health nursing research

Purpose – The paper describes how the classic Delphi method can be adapted and structured to ensure that specific research questions are clearly addressed. Design/methodology/approach – As part of a larger mixed method project, a modified Delphi study was undertaken to explore factors influencing publication and non-publication of mental health nursing research. Findings - This paper reports brief findings from the Delphi study. However, its main focus is the methodological issues arising from the Delphi method. Implications - The paper argues that the classic Delphi method can be adapted and structured to ensure that specific research questions are able to be clearly answered. The adaptations are pragmatic in approach and in keeping with the general principles underpinning the Delphi method, while successfully addressing the problems of attrition and previous criticism of homogenous panels. Originality/value - This paper offers some practical solutions to issue arising from undertaking research using the Delphi method

Time Series on Functional Service Life of Buildings using Fuzzy Delphi Method

The functional service life of heritage buildings, defined as the time period during which the building fulfils the requirements for which it was designed, is a complex system that has still not been fully resolved and continues to be the object of research regarding its social, economic and cultural importance. This paper presents an application for analysing time series that reflect the state of building performance over time. To this end, historical time records are used that provided data that could be interpreted by experts in the field. The latter can then evaluate the input variables (vulnerability and risk) using the expert system for predicting the service life of buildings, Fuzzy Building Service Life (FBSL), this methodology put together the fuzzy logic tools and Delphi method. This model provides output data on the state of functionality or performance of each buildings at each moment in time whenever information records are available. The Delphi Method is used to eliminate expert subjectivity, establishing an FDM-type assessment methodology that effectively quantifies the service life of buildings over time. The application is able to provide significant data when generating future preventive maintenance programmes in architectural-cultural heritage buildings. It can also be used to optimise the resources invested in the conservation of heritage buildings. In order to validate this system, the FDM methodology is applied to some specific building examples.Ministerio de Economía y Competitividad de España, Project ART-RISK - BIA2015-64878-RMinisterio de Economía y Competitividad de España MTM 2015-65397-

Experience of using Delphi method in construction health and safety research

Abstract: This paper discusses the Delphi method which is an inductive approach to research. It has been argued that Delphi method is an essential vehicle of reaching consensus in issues that cannot be resolved in a once off discussion. This paper reports on the experiences achieved by the authors in using the Delphi method among a group of experienced health and safety (H&S) experts in two separate case studies in the construction industry in South Africa. The first case study used three rounds of iteration whilst the second case study used four rounds of iteration. The authors argue that the Delphi method is a comprehensive method of attaining consensus on challenging issues of H&S in the construction industry. Furthermore the method requires proper communication to achieve the required results

Delphi Method and Nominal Group Techniques in Family Planning and Reproductive Health Research

Both the Delphi method and nominal group technique offer structured, transparent and replicable ways of synthesising individual judgements and have been used extensively for priority setting and guideline development in health-related research including reproductive health. Within evidence-based practice they provide a means of collating expert opinion where little evidence exists.They are distinct from many other methods because they incorporate both qualitative and quantitative approaches. Both methods are inherently flexible; this article also discusses other strengths and weaknesses of these methods

combining traditional interviews with delphi method

Ruivo, P., Santos, V., & Oliveira, T. (2019). Success factors for data protection in services and support roles: combining traditional interviews with delphi method. In Censorship, Surveillance, and Privacy: Concepts, Methodologies, Tools, and Applications (Vol. 2, pp. 814-829). IGI Global. DOI: 10.4018/978-1-5225-7113-1.ch042The transformation of today’s information and communications technology (ICT) firms requires the services and support organizations to think differently about customers data protection. Data protection represents one of the security and privacy areas considered to be the next “blue ocean” in leveraging the creation of business opportunities. Based in contemporary literature, the authors conducted a two phases’ qualitative methodology - the expert’s interviews and Delphi method to identify and rank 12 factors on which service and support professionals should follow in their daily tasks to ensure customer data protection: 1) Data classification, 2) Encryption, 3) Password protection, 4) Approved tools, 5) Access controls, 6) How many access data, 7) Testing data, 8) Geographic rules, 9) Data retention, 10) Data minimization, 11) Escalating issues, and 12) Readiness and training. This paper contribute to the growing body of knowledge of data protection filed. The authors provide directions for future work for practitioners and researchers.authorsversionpublishe

The Delphi Method for Graduate Research

Introduction It continues to be an exciting time to be a researcher in the information systems discipline; there seems to be a plethora of interesting and pressing research topics suitable for research at the masters or PhD level. Researchers may want to look forward to see what will be the key information systems issues in a wireless world, the ethical dilemmas in social network analysis, and the lessons early adopters learn. Practitioners may be interested in what others think about the strengths and weaknesses of an existing information system, or the effectiveness of a newly implemented information system. The Delphi method can help to uncover data in these research directions. The Delphi method is an iterative process used to collect and distill the judgments of experts using a series of questionnaires interspersed with feedback. The questionnaires are designed to focus on problems, opportunities, solutions, or forecasts. Each subsequent questionnaire is developed based on the results of the previous questionnaire. The process stops when the research question is answered: for example, when consensus is reached, theoretical saturation is achieved, or when sufficient information has been exchanged. The Delphi method has its origins in the American business community, and has since been widely accepted throughout the world in many industry sectors including health care, defense, business, education, information technology, transportation and engineering. The Delphi method\u27s flexibility is evident in how it has been used. It is a method for structuring a group communication process to facilitate group problem solving and to structure models (Linstone & Turloff, 1975). The method can also be used as a judgment, decision-aiding or forecasting tool (Rowe & Wright, 1999), and can be applied to program planning and administration (Delbeq, Van de Ven, & Gustafson, 1975). The Delphi method can be used when there is incomplete knowledge about a problem or phenomena (Adler & Ziglio, 1996; Delbeq et al., 1975). The method can be applied to problems that do not lend themselves to precise analytical techniques but rather could benefit from the subjective judgments of individuals on a collective basis (Adler & Ziglio, 1996) and to focus their collective human intelligence on the problem at hand (Linstone & Turloff, 1975). Also, the Delphi is used to investigate what does not yet exist (Czinkota & Ronkainen, 1997; Halal, Kull, & Leffmann, 1997; Skulmoski & Hartman 2002). The Delphi method is a mature and a very adaptable research method used in many research arenas by researchers across the globe. To better understand its diversity in application, one needs to consider the origins of the Delphi method. The Classical Delphi The original Delphi method was developed by Norman Dalkey of the RAND Corporation in the 1950\u27s for a U.S. sponsored military project. Dalkey states that the goal of the project was to solicit expert opinion to the selection, from the point of view of a Soviet strategic planner, of an optimal U.S. industrial target system and to the estimation of the number of A-bombs required to reduce the munitions output by a prescribed amount, (Dalkey & Helmer, 1963, p. 458). Rowe and Wright (1999) characterize the classical Delphi method by four key features: 1. Anonymity of Delphi participants: allows the participants to freely express their opinions without undue social pressures to conform from others in the group. Decisions are evaluated on their merit, rather than who has proposed the idea. 2. Iteration: allows the participants to refine their views in light of the progress of the group\u27s work from round to round. 3. Controlled feedback: informs the participants of the other participant\u27s perspectives, and provides the opportunity for Delphi participants to clarify or change their views. 4. Statistical aggregation of group response: allows for a quantitative analysis and interpretation of data.

Use of the Delphi Method for Collection and Analysis of Subjective Judgements: an Example From Central Kalimantan

Sebagian besar daripada keputusan-keputusan yang penting dalam bidang pelayanan kesehatan harus didasarkan kepada pendapat individu yang subyektif, oleh karena data-data yang tepat dan model-model analitis tidak cukup tersedia. Metoda Delphi dapat digunakan maka data-data subyektif dapat dikumpulkan dan dianalisa secara sistematis, walaupun metoda tersebut sangat murah digunakan dan mudah dimengerti. Satu contoh daripada penggunaan metoda Delphi diberikan dalam naskah ini, mengenai persiapan-persiapan Pelita 3 Kesehatan di Kalimantan Tengah