• Journal of information and communication convergence engineering
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• 제10권3호
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• pp.258-263
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• 2012

Recently, the magnitude of electronic data interchange (EDI) document processing for the handling of port logistics is abruptly being increased. The existing system processes EDI documents in a script mode, but due to a complicated script preparation procedure and low document processing efficiency, it cannot meet the demand as the usage flow of documents increases. In this paper, an EDI electronic document processing system was designed and implemented in a document scanner and mapper, which are binary form electronic document processing tools and do not require script files during the conversion of extensible markup language (XML)-based electronic documents. This new system has the merits of XML features during reading and writing with improved speed, usage convenience, and good portability on systems when compared to the conventional ones.

• 정보학연구
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• 제9권4호
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• pp.25-34
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• 2006

As most application programs are more sophisticated and are adopted the distributed object technology, the object based distributed design became widespread since it supports portability and reusability. The approaches for fault-tolerant distributed computing are categorized into the active replica mechanism for mission-critical application programs and the passive replica mechanism for non mission-critical ones, when fault-tolerant facilities are added on. Our paper introduces the pros and drawbacks of several approaches for the add-on low-overhead fault-tolerant services by the surveys and shows the results of experiments for bench-mark models in order to demonstrate their performance.

• 정보학연구
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• 제9권4호
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• pp.35-47
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• 2006

Many researches are going on with regard to issues and problems related to mobile database systems, which are caused by the weak connectivity of wireless networks, the mobility and the portability of mobile clients. Mobile computing satisfies user's demands for convenience and performance to use information at any time and in any place, but it has many problems to be solved in the aspect of data management. The purpose of our study is to Implement Real-Time Mobile Query Processing System(MQPS) to solve problems related to database hoarding, the maintenance of shared dataconsistency and the optimization of logging, which are caused by the weak connectivity and disconnection of wireless networks inherent in mobile database systems under mobile client server environments. In addition, we proved the superiority of the proposed MQPS by comparing its performance to the C I S(Client-Intercept-Srever) model.

• Journal of Information Processing Systems
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• 제13권1호
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• pp.26-39
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• 2017

The need for embedded devices to be able to exchange information with each other and with data centers is essential for the advent of the Internet of Things (IoT). Several existing communication protocols are designed for small devices including the message-queue telemetry transport (MQTT) protocol or the constrained application protocol (CoAP). However, most of the existing implementations are convenient for computers or smart phones but do not consider the strict constraints and limitations with regard resource usage, portability and configuration. In this paper, we report on an industrial research and development project which focuses on the design, implementation, testing and deployment of a MQTT module. The goal of this project is to develop this module for platforms having minimal RAM, flash code memory and processing power. This software module should be fully compliant with the MQTT protocol specification, portable, and inter-operable with other software stacks. In this paper, we present our approach based on abstraction layers to the design of the MQTT module and we discuss the compliance of the implementation with the requirements set including the MISRA static analysis requirements.

• Journal of Multimedia Information System
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• 제5권2호
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• pp.115-120
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• 2018

Recently, ways for accurately measuring the three dimensional movements of hand are actively researched so as to utilize the measurement data for therapeutic and rehabilitation programs. This research paper aims to introduce a product called Myo Armband, a wearable device comprised of a 3-axis accelerometer, a 3 axis gyroscope, and electromyographic sensors. We compare Armband's performance with that of the Motion Capture System, which is known as a device for providing fairly accurate measurements for angular movements of objects. Dart throwing and wrist winding motions comprised movement scenarios. This paper also discusses one of Armband's advantages - portability, and suggests its potential as a substitute for previously used devices. Decent levels of measurement accuracy were obtained which were comparable to that of three dimensional measurement device.

• 인터넷정보학회논문지
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• 제24권4호
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• pp.15-24
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• 2023

Digital therapeutics (DTx) are utilized to replace or supplement drug therapy to treat patients. DTx are developed as a mobile application for portability and convenience. The government requires security verification to be performed on digital medical devices that manage sensitive information during the transmission and storage of patient data. Although safety verification is included in the approval process for DTx, the cybersecurity checklist used as a reference does not reflect the characteristics of mobile applications. This poses the risk of potentially overlooking vulnerabilities during security verification. This study aims to address this issue by comparing and analyzing existing items based on the mobile tactics, techniques, and procedures of MITRE ATT&CK, which manages globally known and occurring vulnerabilities through regular updates. We identify 16 items that require improvement and expand the checklist to 29 items to propose improvement measures. The findings of this study may contribute to the safe development and advancement of DTx for managing sensitive patient information.

• 한국콘텐츠학회논문지
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• 제5권5호
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• pp.43-50
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• 2005

유통망에서 핵심이 되는 공급 망 관리와 고객관리의 전산화 기반인 되는 POS 시스템이 유비쿼터스 개념의 도입으로 인한 데이터 통합을 위하여 XML을 이용하여 데이터베이스를 구축하고 XML의 단점인 보안을 위하여 공개키 기반구조의 인증서 기법과 보안의 표준인 XML-Encryption을 이용하여 분산처리 POS 시스템을 설계하였다. 이러한 POS 시스템은 네 가지의 장점을 가진다. 첫 번째 서버가 없으므로 매번 인증과 데이터 전송을 시도할 필요가 없다. 두 번째 XML로 데이터 베이스를 통합하여 프로그램 자체의 이식성을 높일 수 있다. 세 번째 데이터 전송에 있어서 XML 데이터를 암호화 후 데이터를 전송하기 때문에 데이터가 안전하다. 네 번째 POS 시스템 클라이언트 프로그램의 데이터 분산화 및 처리 속도의 향상을 위하여 데이터 처리할 때마다 암호화를 한 후 데이터 전송할 때 데이터를 모아서 전송한다.

• 디지털융복합연구
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• 제20권3호
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• pp.181-189
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• 2022

모바일 기기의 확산과 ICT 기술로 핀테크 혁신이 더욱 가속화 될 것으로 전망되는 가운데, 최근 금융의 화두는 '디지털 전환'이며, 여기에는 빅데이터의 활용이 주요 요소라 할 수 있다. 특히 오픈 뱅킹이라는 인프라가 마이데이터와 마이페이먼트 산업과 연계되어 금융정보의 이종결합, 자산 조회 및 이체 기능이 결합되는 오픈 파이낸스 시대가 도래고 있다. 마이데이터는 데이터 활용을 통한 가치 창출에 주목하여 나타난 개념으로, 데이터의 주체가 능동적인 자기결정권을 갖는데 의의가 있는데 현재 국내에서도 마이데이터가 시행 되며 전략적 활용방안을 모색되고 있다. 이에 본 연구는 마이데이터 관련 비즈니스 사례를 분석하여 향후 금융의 디지털 전환을 위한 전략적 활용방안을 제시하는 것을 목적으로 하였다. 해외 주요국가에서 마이데이터 개념을 적용한 PSD2 및 오픈뱅킹 정책을 적극 추진하고 있는 가운데 성공적인 비즈니스 모델(Mint, Information Bank, Strands)의 분석을 통해 데이터 기반 비즈니스의 타당성을 확인하고 공통점을 모색하기 위한 사례 연구를 수행하였다. 거래의 효율성과 다양성을 향상시키는 사업 모델을 제공한다는 관점에서 마이데이터는 기존의 사업 모델을 개선할 수 있는 잠재력이 있음을 확인할 수 있었다. 마이데이터는 본인 중심의 모든 데이터로부터 개별적인 데이터 생태계를 쉽게 구현하고 관리할 수 있어야 하는데 개인이 스스로 이를 관리, 통제, 활용하는 것은 현실적으로 어렵다. 따라서 마이데이터 오퍼레이터 또는 마이데이터 서비스 제공자 역할을 할 수 있는 비즈니스 모델이 적극적으로 모색될 필요가 있겠다.

• Genomics & Informatics
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• 제5권4호
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• pp.188-193
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• 2007

The Functional Element SNPs Database (FESD) categorizes functional elements in human genic regions and provides a set of single nucleotide polymorphisms (SNPs) located within each area. Users may select a set of SNPs in specific functional elements with haplotype information and obtain flanking sequences for genotyping. Our previous version of FESD has been improved in several ways. We regenerated all the data in FESD II from recently updated source data such as HapMap, UCSC GoldenPath, dbSNP, OMIM, and $TRANSFAC^{(R)}$. Users can obtain information about tagSNPs and simulate LD blocks for each gene from four ethnicities in the HapMap project on the fly. FESD II employs a Java/JSP web interface for better platform portability and higher speed than PHP in the previous version. As a result, FESD II provides its users with more powerful information about functional element SNPs of human ethnicities.

• 대한임베디드공학회논문지
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• 제11권6호
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• pp.325-334
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• 2016

Recently, Open Computing Language (OpenCL) has been proposed to provide a framework that supports heterogeneous computing platforms. By using an OpenCL framework, digital communication systems can support various protocols in a unified computing environment to achieve both high portability and high performance. This article introduces a parallel software decoder of Low Density Parity Check (LDPC) codes for China Multimedia Mobile Broadcasting (CMMB) on a heterogeneous platform. Each step of LDPC decoding has different parallelization characteristics. In this paper, steps suitable for task-level parallelization are executed on the CPU, and steps suitable for data-level parallelization are processed by the GPU. To improve the performance of the proposed OpenCL kernels for LDPC decoding operations, explicit thread scheduling, loop-unrolling, and effective data transfer techniques are applied. The proposed LDPC decoder achieves high performance by using heterogeneous multi-core processors on a unified computing framework.