• Journal of Internet Computing and Services
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• v.21 no.6
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• pp.81-94
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• 2020

This study developed evaluation indicators for the comfort experience of virtual reality (VR) headsets by classifying, defining, and weighting cybersickness-causing factors using the Delphi research method and analytic hierarchical process (AHP) approach. Four surveys were conducted with 20 experts on VR motion sickness. The expert surveys involved the 1) classification and definition of cybersickness-causing dimensions, classification of sub-factors for each dimension, and selection of evaluation indicators, 2) self-reassessment of the results of each step, 3) validity revaluation, and 4) final weighting calculation. Based on the surveys, the evaluation indicators for the comfort experience of VR headsets were classified into eight sub-factors: field of view (FoV)-device FoV, latency-device latency, framerate-device framerate, V-sync-device V-sync, rig-camera angle view, rig-no-parallax point, resolution-device resolution, and resolution-pixels per inch (PPI). A total of six dimensions and eight sub-factors were identified; sub-factor-based evaluation indicators were also developed.

• Journal of Korean Society for Quality Management
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• v.52 no.2
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• pp.357-376
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• 2024

Purpose: The purpose of this study is to design an objective and comparable diagnostic system for diagnosing the technology level of military maintenance depots and verify its actual applicability. Methods: Literature Review, Capability Maturity Model Integration, Analytic Hierarchy Process. Results: Military maintenance depot maintenance quality level diagnosis items, Maintenance quality level by maintenance technology area, Guidelines for diagnosing maintenance quality level, Quality level comparison results by area and implications for improvement. Conclusion: In order to systematically evaluate the maintenance quality of military maintenance depots, this study was conducted with the goal of designing an overall maintenance quality diagnosis system, including diagnosis areas, diagnosis items, and a diagnosis score award system, by improving the existing evaluation method. In addition, the newly developed maintenance quality diagnosis system was applied to actual evaluation activities and the results were returned to members, confirming the usefulness of the developed maintenance quality diagnosis system in the field.

• Fire Science and Engineering
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• v.33 no.6
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• pp.87-94
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• 2019

Through a press release dated July 17, 2018, the Anti-Corruption and Civil Rights Commission recommended that the National Fire Agency develop preventive measures against fire in the "Indoor Archery Ground" and "Room Escape Café" etc., which were originally excluded from the category of "Publicly Used Establishments." This study developed the hierarchy of domains and indicators of measurement for fire risk assessment of the new business of publicly used establishments through the Delphi Method. It analyzed the goodness of fit scores (over 3.00) and secured an average score of 4.25. Using AHP analysis, the ratio of consistency for the domains of measurement of fire risk assessment was found to be 4.0%, which was lower than CR ≤ 0.1 (10%). The consistency of subsequent measurement indicators were distributed in the range of 0.1%~3.6%, and they were identified as being commonly consistent. The indicators of measurement appeared as follows in order of importance and priority: Type of Internal Passage of Establishment and Evacuation Capacity of Exit (0.316), Control of Ignition Source (0.141), Inherent Risk (0.106), Appropriateness and Adaptiveness of Fire Detection System (0.097), Control of Inflammables/Combustibles (0.084), Guides and Facilities helping Evacuation (0.075), Fire Resistant Structure and Finishing Materials (0.060), Compartmentalization and Emergency Exit (0.049), Risk of Fire Expansion (0.046), and Appropriateness and Adaptiveness of Fire Extinguishing Facilities (0.026). The findings of this study are expected to be expansively used as data for future research on the development of fire risk assessment indicators.

• Therapeutic Science for Rehabilitation
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• v.10 no.3
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• pp.97-110
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• 2021

Objective : This study aimed to develop evaluation items based on Parten's social play developmental stages to measure social play in preschool children. Methods : Through a literature review, the investigation items according to Parten's social play developmental stages were collected. Two Delphi surveys were conducted using 22 expert panels. An understanding of the contents of the preliminary items was determined via parents of preschool children. The evaluation method was established through an expert advisory meeting. Results : Through data collection and the Delphi survey, a total of 89 items were drawn, including 12 unoccupied behaviors, 7 onlooker behaviors, 14 solitary play, 16 parallel play, 17 associative play, and 23 cooperative play items. The average content validity ratio of the Delphi survey was 0.85. The stability was 0.15. The consensus was 0.78. The final preliminary evaluation items comprised a total of 40 items, including 17 for associative play and 23 for cooperative play. Conclusion : An evaluation items that can measure social play in preschool children was developed, and its content validity was verified. It is expected to be used as an evaluation tool in clinical practice.

• Journal of the Korean Society of Earth Science Education
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• v.14 no.1
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• pp.59-68
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• 2021

The purpose of this study is to provide basic data to derive the direction of future elementary science curriculum books through delphi study of science education experts. To this end, a panel of 18 experts was formed and two delphi investigations were conducted. By analyzing the mean, median, and CVR values for each item in the Delphi survey, the priorities of changes in science education for the future society and the validity of each item's implementation method were verified. In addition, by synthesizing this, the direction of future elementary science textbooks was derived. As a result, the future elementary science textbook can be 'fun and interesting science study', 'exploration performance-oriented learning' and 'science that enjoys and participates even as an adult'. It should be developed to prepare for culture. For this, it is necessary to use materials in real life, and it is necessary to present an experiment that stimulates curiosity and easy access using materials and preparations with high accessibility. In addition, it is necessary to develop a textbook for learning that science is a discipline that is highly connected with real life, and that it is also related to future career paths.

• Journal of Korea Entertainment Industry Association
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• v.15 no.8
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• pp.337-349
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• 2021

This study tried to develop a lifestyle redesign program that can be applied to college students. For program development, the Delphi research method was implemented with 8 experts. Based on previous studies on lifestyle and time use, the first Delphi survey investigated the prioritization of occupations through evaluation instruments, lifestyle types, and living time survey tables. In the second Delphi survey, it was constructed based on the opinions of experts, and when the content validity ratio was low, it was reconstructed by modifying and supplementing it. In the third Delphi survey, while maintaining the framework of the secondary content, the experts' own responses from the second time and the second average score with other experts were presented together. As a result of this study, a program with an average score of 3.88~4.00, a content validity ratio of 1.00, and a convergence of 0.00 was finally derived. In the lifestyle redesign program for college students, the first step of the pre-intervention evaluation is to identify the lifestyle type, apply evaluation tools, and select occupations. In the second step, the lifestyle is redesigned by the intervention execution, and the facilitator intervenes to help college students do well their tasks. The program was developed by encouraging them to practice, checking the lifestyle type change as a result of the intervention in step 3, applying evaluation instruments after the intervention, and ending the program in the last step. This study provided a rationale for using lifestyle redesign program as an intervention to change their occupational performance patterns in order to successfully carry out the life they want.

• Journal of Convergence for Information Technology
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• v.12 no.5
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• pp.1-14
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• 2022

This study tried to suggest crisis management compliance to prevent personal information infringement accidents that may occur in the process because the data including personal information is being processed in the artificial intelligence (AI) service process. To this end, first, the AI service provision process is divided into 3 processes such as service planning/data design and collection process, data pre-processing and purification process, and algorithm development and utilization process. And 3 processes are subdivided into 9 stages following to personal information processing stages to infringe personal information. All processes were investigated with literature and experts' Delphi. Second, the investigated personal information infringement factors were selected through FGI, Delphi, etc. for experts. Third, a survey was conducted with experts on the severity and possibility of each personal information infringement factor, and the validity and adequacy of the 94 responses were verified. Fourth, to present appropriate risk management compliance for personal information infringement factors in AI services, a method for calculating the risk level of personal information infringement is prepared by utilizing the asset value of personal information, personal information infringement factors, and the possibility of infringement accidents. Through this, the countermeasures for personal information infringement incidents were suggested according to the scored risk level.

• Journal of the Society of Disaster Information
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• v.20 no.1
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• pp.177-191
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• 2024

Purpose: In this study, the Drenzer facility, which is a facility installed to prevent the spread of fire caused by fire in adjacent buildings in the fire prevention zone, was analyzed legally and technically. We confirmed the uncertainty of the Building Act and the Fire Protection Act, and suggested the revision of the necessary standards. Method: Although the Drenzer facility is a building facility, it is actually applied in the field of firefighting, so the Delphi analysis was conducted on a panel composed of architectural experts and firefighting experts in the first, second, and third rounds to find the issuses and important facility component elements. Finally, the IPA(Importance-Performance Analysis) analysis was conducted to identify the importance of the elements that need to be revised. Result: Delphi analysis was carried out for experts on various components of Drenzer equipment in the first, second, and third rounds, and it was found that the survey items of the head, detector, and other facilities of the Drenzer equipment are valid items to identify problems. The IPA analysis indicated that the revision of the standards for Drencher head was necessary as a priority. Conclusion: In this study, it was possible to confirm the opinions of experts through Delphi analysis on the legal and technical problems of Drencher facilities, and it was confirmed that among the components of the Drencher facility, the revision of the head-related regulations is required as a priority.

• 한국디지털정책학회:학술대회논문집
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• 2005.11a
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• pp.177-183
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• 2005

The purpose of this paper is to analyze the concept and cultivating planning of leading company in digital contents industry to promote industrial competitiveness of Korea. Analysis of this study focuses on concept of leading company in digital contents industry through the delphi method. And in addition, we propose the cultivating planning through the value chain method and AHP method. Finally, this study presents the various implication and policy planning.

• Journal of Distribution Science
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• v.15 no.2
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• pp.47-51
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• 2017

Purpose - The purpose of the study was to find out factors having influence upon management of franchise convenience stores being distribution business by interview with franchisees in accordance with Delphi method and to investigate marketing strategy of increase income. Research design, data, and methodology - This study investigated not only franchisees but also head office's franchise consultants of convenience stores carefully by Delta technique to suggest actual solutions of practice and to be different from precedent studies. Delphi method's interview and questionnaire were used to investigate performance of franchisees. 120 franchisees were interviewed to consist of men and women. Results - FC visited franchise stores to investigate: Franchisees thought of keeping of exact information on commodity information and sales promotion events, and admitted of franchiser's effort of growth and development of stores and improper visit frequency of stores and low effort of solving of difficulty of franchisees. Conclusions - More than 80% of the franchisees cognized more than 70% of performance upon request of ordering from headquarters: Not only franchisees but also headquarters need to lessen gap of difference of cognition. Franchise headquarters was thought to give services below than common level, and service manual and operation manual were thought to be high. Headquarters need to give practical support service.