• 제목/요약/키워드: Evidence Management

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Design and Implementation of a Digital Evidence Management Model Based on Hyperledger Fabric

  • Jeong, Junho;Kim, Donghyo;Lee, Byungdo;Son, Yunsik
    • Journal of Information Processing Systems
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    • 제16권4호
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    • pp.760-773
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    • 2020
  • When a crime occurs, the information necessary for solving the case, and various pieces of the evidence needed to prove the crime are collected from the crime scene. The tangible residues collected through scientific methods at the crime scene become evidence at trial and a clue to prove the facts directly against the offense of the suspect. Therefore, the scientific investigation and forensic handling for securing objective forensic in crime investigation is increasingly important. Today, digital systems, such as smartphones, CCTVs, black boxes, etc. are increasingly used as criminal information investigation clues, and digital forensic is becoming a decisive factor in investigation and trial. However, the systems have the risk that digital forensic may be damaged or manipulated by malicious insiders in the existing centralized management systems based on client/server structure. In this paper, we design and implement a blockchain based digital forensic management model using Hyperledger Fabric and Docker to guarantee the reliability and integrity of digital forensic. The proposed digital evidence management model allows only authorized participants in a distributed environment without a central management agency access the network to share and manage potential crime data. Therefore, it could be relatively safe from malicious internal attackers compared to the existing client/server model.

119 구급대원의 법의학 지식에 대한 연구 (Assessing the forensic knowledge of 119 emergency medical technicians)

  • 이희영;문준동
    • 한국응급구조학회지
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    • 제23권2호
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    • pp.75-86
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    • 2019
  • Purpose: It is crucial that 119 emergency medical technician (EMT) have adequate knowledge regarding forensic science. This study aimed to assess the forensic knowledge of EMTs in the Republic of Korea. Methods: This study was conducted on EMTs of five fire stations in D metropolitan city between August 6 and August 13, 2018. A questionnaire consisting of items on crime-related incident recognition (i.e., mechanical asphyxiation, trauma, sex crimes, and child abuse), forensic evidence management (i.e., evidence collection, preservation, and recording) was administered to the participants. Finally, 119 questionnaires were analyzed. Results: The ratio of correct answers for crime-related incidents recognition was 55.82%, which was lower than that for forensic evidence management(84.5%). In particular, the scores for the type of neck compression(16.5%) and wound assessment(44.0%) were low. The percentage of correct answers for forensic evidence management was 78.4% for evidence collection, 84.4% for evidence preservation, and 90.6% for evidence recording. Previous forensic education experience was not a significant variable. Conclusion: Specific and practical forensic science education on perception of crime-related incident, including asphyxia and wound identification, and forensic evidence collection is needed.

네트워크 서비스 환경에서 MPEG-21을 활용한 디지털 콘텐츠 보호 및 컴퓨터 포렌식스 증거 관리 메커니즘 (Digital Content Protection and Computer Forensics Evidence Management Mechanism using MPEG-21 in Network Service Environment)

  • 장은겸;이범석
    • 디지털산업정보학회논문지
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    • 제6권2호
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    • pp.129-141
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    • 2010
  • In network service environment, cultures from diversified fields are easily accessible thanks to the convenient digital content services. Unfortunately, unauthorized access and indiscreet misuse behaviors have deprived content owners of their copyrights. This study suggests an integrity-ensured model applicable for forensic evidence of digital content infringement in network service environment. The suggested model is based on MPEG-21 core components for digital content protection and the system is designed in connection with the components of digital content forensics. Also, the present study suggests an efficient technology to protect and manage computer forensic evidence and digital content by authorizing digital content use and catching infringing logs of authorized users without lag in network environment for the benefit of network security and reliability.

법적 증거의 기록학적 의미 (Archival Meaning of Legal Evidence)

  • 설문원
    • 한국기록관리학회지
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    • 제22권1호
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    • pp.219-235
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    • 2022
  • 이 연구는 법적 증거의 개념이 기록관리의 원칙에 어떤 영향을 미쳤는지 분석하고 그 의미와 한계를 정리하는 것을 목적으로 한다. 이를 위하여 우선 로마법전에서 현대 법제에 이르기까지 증거로서 기록의 신빙성을 판단하는 방법론이 어떻게 변화해 왔는지를 개괄하였다. 또한 이러한 역사적 전개과정에 대한 기록학적 의미를 다음과 같은 측면에서 분석해 보았다. 첫째, 법적 증거로서 기록의 신빙성을 판단하기 위하여 적용한 주된 방법론은 무엇이었는지 시대별로 살펴보았다. 둘째, 법적 증거로 인정받을 수 있는 기록이 갖추어야 할 특성 혹은 품질은 무엇이라고 보았는지를 살펴보았다. 신빙성, 진본성, 진실성, 신뢰성, 정확성 등과 같은 특성이 해석되고 기록의 증거능력 판단의 기준으로 채택되는 과정을 살펴보았다. 셋째, 기록에 대한 인식과 함께 당시에 주요 관리대상으로 삼은 기록의 유형도 살펴보았다. 시대별 방법론의 배경을 이해하는 데에 도움이 된다고 보았기 때문이다. 마지막으로 법적 증거 기반의 기록관리가 갖는 의미와 한계를 제시하였다.

The Effect of Brand Evidence on Positive Emotion, Negative Emotion, and Attitude in Restaurant Industry

  • KIM, Eun-Jung
    • 한국프랜차이즈경영연구
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    • 제12권1호
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    • pp.45-55
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    • 2021
  • Purpose: How to build the positive emotion of customer is very important, because it affects the positive attitude. Brand evidence has a significant impact on consumer behavior in terms of reinforcing consumers' perception of food service companies and differentiating them from competing brands. Thus, this study examines the effect of brand evidence on emotion (positive emotion and negative emotion), and attitude in restaurant industry. Research design, data, and methodology: This study examines the structural relationship among brand evidence, emotion, and attitude. Brand evidence divide into three sub-dimensions such as physical evidence, core service, and employee service. In order to test the purposes of this study, research model and hypotheses were developed. The questionnaire items were modified and used according to the content of this study based on previous studies. All constructs were measured by multiple items tested and developed in the previous research. The data were collected from 439 restaurant users from Seoul area were analyzed using SPSS 22.0 and SmartPLS 3.0 program. A total of 460 questionnaires were distributed and a survey was conducted for 4 weeks, and a total of 439 were used for analysis, excluding non-response data and 21 unusable response data among the collected questionnaires. Frequency analysis was conducted to identify the general characteristics of the survey subjects. To measure the reliability and validity of the measurement tools, confirmatory factor analysis was conducted. Structural model analysis was conducted to verify the research model. Result: The findings demonstrate that physical evidence, core service, employee service had positive effects on positive emotion. And core service and employee service had negative effects on negative emotion while physical evidence did not have. Also, positive emotion had positive effect on attitude and negative emotion had negative effect on attitude. Conclusions: The findings of this study provide guidelines on how to enhance competitiveness in restaurant industry through understanding brand evidence's effects on raising perceived consumer's emotion and attitude. Therefore, food service companies should establish a marketing strategy that can stimulate positive emotions through brand evidence, which is all factors related to service brands that influence consumers' evaluation of service products and purchase decision-making process.

The Effect of Corporate Social Responsibility Practices on Brand Equity: An Examination of Malaysia's Top 100 Brands

  • ZAHARI, Abdul Rahman;ESA, Elinda;RAJADURAI, Jegatheesan;AZIZAN, Noor Azlinna;MUHAMAD TAMYEZ, Puteri Fadzline
    • The Journal of Asian Finance, Economics and Business
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    • 제7권2호
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    • pp.271-280
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    • 2020
  • The study aims to provide some evidence of the effects of CSR practices on financial-based brand equity in Malaysia. Nowadays, many companies have embraced corporate social responsibility (CSR) practices because CSR is a vital component of the current competitive and complex business arena. It contributes greatly to social, environmental, and economic condition. With CSR practices, companies are able to achieve many benefits and there is evidence that CSR practices predict higher brand equity. However, little evidence has been produced concerning the effects of CSR practices on financial aspects of brand equity in developing countries such as Malaysia. Therefore, this paper aims to investigate the effects of CSR practices on financial based brand equity among Malaysia Top 100 brand. A CSR checklist instrument was used in the current study to examine the extent of CSR practiced. The results indicated that PLCs that were actively involved in CSR practices such as environmental, community, workplace and marketplace, found that this involvement enhanced their brand equity. The findings provide useful support and evidence for the management of PLCs in Malaysia, as well as companies in other developing countries, to engage more in CSR practices as a core element of their strategic and brand management.

아동의 말초정맥주사 관리를 위한 근거기반 간호 프로토콜 개발 (Development of an Evidence-Based Nursing Protocol for Management of Peripheral Catheters in Children)

  • 최희강;강미정;강현주;김은혜;방경숙
    • 임상간호연구
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    • 제22권1호
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    • pp.56-67
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    • 2016
  • Purpose: The purpose of this study was to develop an evidence-based nursing protocol for peripheral intravenous catheter management in hospitalized children. Methods: The preliminary protocol of this study was developed based on domestic and foreign guidelines, research, a survey and an analysis of medical records in a university hospital. It is a methodological research to develop evidence-based nursing protocol of peripheral intravenous catheter management verified by content validity by a group of specialists and users. Results: The specialists' verification of validity in the preparatory protocol had a CVI level of 0.94 and the propriety and conveniency of users had an average of $3.0{\pm}0.52$. The final evidence-based nursing protocol was composed of 5 areas (education, dressing and fixation, maintenance and replacement, observation and record, and coping to complication) with 46 specific recommendations. Conclusion: Based on domestic and foreign research and guidelines verified by specialists and users, the findings in this study provide a simple, applicable and evidence-based nursing protocol for peripheral intravenous catheter management in hospitalized children. By the clinical application of this protocol, nurse tasks in managing peripheral intravenous catheter can be performed with more scientific evidence and be standardized.

Combined Effects of Physical Evidence and Functional Service at Bulgogi Restaurants on Customers' Store Image and Purchase Behaviors: Application of Video Scenario Technique

  • Hwang, Daye;Chang, Hyeja
    • 한국식생활문화학회지
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    • 제35권2호
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    • pp.181-192
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    • 2020
  • This study aimed to identify whether or not four service situations varying according to positive and negative combinations of physical evidence and functional service influence store image and purchase behavioral intentions of customers at bulgogi restaurants. The video-scenario technique was used for the study. Data were analyzed with the SPSS (Window 19.0) package using frequency analysis, one-way ANOVA, 2 by 2 factorial ANOVA, exploratory factor analysis, and multiple regression analysis to confirm the hypotheses. The combined effect of functional service and physical evidence influenced store image and purchase intention. In terms of seperate effect of physical evidence and functional service, the effect of employee service on store image was more powerful than that of physical evidence, even though the effect differed depending on the situation. Purchase intention was only influenced by functional service quality from employees under the four different scenarios. Thus, when opening a Korean restaurant, proper management of tangible evidence suitable to service, and the prices expected from local customers should be determined. Additionally, extremely high or low levels of physical evidence management should be avoided.

디지털 이미지 증거에서 사건과 무관한 파일 삭제시 무결성 제공 방안 연구 (A Study on the Providing the Integrity of Digital Evidence while Deleting the irrelevant File)

  • 김태경
    • 디지털산업정보학회논문지
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    • 제15권4호
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    • pp.111-116
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    • 2019
  • The digital forensic analysis ensures the integrity of confiscated data by calculating hash values for seizure and search of digital evidence and receiving confirmation and signature from participants. However, evidence that is irrelevant to the alleged offense needs to be deleted even after seizure from the point of view of privacy. But the hash value is altered by deleting the irrelevant data from the image file, one will not be able to prove that the file is in the initial state when it was seized. Therefore, in this paper, a study was conducted to support the integrity of the digital evidence, even if some of the seized digital evidence was deleted or damaged during the seizure search. The hash value of each data is calculated and hash value of the combination of hash values are also calculated. Even if the unrelated evidence is deleted from the seized evidence regardless of file system such as FAT or NTFS, the suggested method presented a way to provide the integrity that proves there is no change in the evidence file.

중풍환자에 대한 일차 한의임상진료 가이드라인 (Clinical Practice Guideline of Korean Medicine for Stroke : Preliminary Guideline and Recommendation)

  • 한창호
    • 대한한방내과학회지
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    • 제33권4호
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    • pp.347-366
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    • 2012
  • The aim of this new statement is to provide comprehensive and timely evidence-based recommendations on stroke management for clinical practitioners. Many countries are already well engaged in developing and releasing their own clinical practice guidelines, whereas Korean Medicine (KM) is still beginning. It will take time and effort to develop evidence-based guidelines and recommendations of KM or other traditional medicine because they are weak in the area of scientific evidence. The clinical practice guideline of Korean medicine for stroke was formulated through extensive review of published literature and consensus meeting of Korean medicine specialists. This project was supported by a grant of the Oriental Medicine R&D Project, the Ministry of Health and Welfare. Referring to guidelines developed in other countries, the experts in the subject tried to organize and develop guidelines and recommendations adequate for domestic medical circumstances. In December, 2008, a multi-disciplinary team called the Evidence Based Clinical Practice Guidelines Development Group (EBCPGsDG) for Stroke was organized. The writing committee was comprised of experts in internal medicine, acupuncture, rehabilitation, and Sasang constitution. Outside specialists and associated panels were invited for consultation. The scope of the guideline encompasses acupuncture, moxibustion and herbal medicine (including Korean medicine, traditional Chinese medicine, Kampo medicine) as interventions for stroke patients. It includes statements about ischemic stroke (I63), stroke not specified as hemorrhage or infarction (I64), and sequelae of cerebrovascular disease (I69) according to the International Classification of Disease (ICD). The committee subdivided the description of herbal medications into acute stroke management, subacute stroke management, post-stroke management, and secondary prevention of stroke. Guidelines on the practice of acupuncture and moxibustion were described in order for acute stroke management, subacute stroke management, chronic stroke management, and post-stroke rehabilitation. Clinicians who are working in the field of stroke care can adopt this guideline for their practice.