Earticle

최근 응용 프로그램은 대다수가 웹기반 시스템으로 구현되고 있다. 그것은 정보의 호환 관점에서 웹 기반 정보통합이 사실상의 유일한 대안이 되고 있기 때문이며. 이러한 비즈니스 시장에서 살아남기 위해 기업들이 배포 및 유지보수가 쉬운 웹응용프로그램을 선호했기 때문이다. 문제는 다양한 고객의 요구조건을 웹 응용 프로그램이 충족시키기에는 한계가 있다는 점이다. 이런 문제를 해결하고자 많은 기업은 앞 다투어서 새로운 인터넷 구조인X-Internet기반의 응용프로그램을 출시하고 있으며 기업들도 도입을 서두르고 있다. 본 논문에서는 Internet 시스템을 소개하고 그에 기반을 둔 응용프로그램과 일반적 웹응용프로그램의 성능을 TPC-H 벤치마크 관점에서 비교 분석함으로써 X-Internet 구조의 기본 시스템구조 대비 그 가능성이 크다는 것을 입증하였다.

Application programs recently have been implemented in terms of web based systems. It mainly comes from the reason that the web based system integration is the only alternative of which vendors prefers the systems that they can easily distributed and maintained to the conventional client server systems. The web based systems, however, have their intrinsic limitations to cope with various user requirements. In order to solve these issues, many organizations and companies try to adopt X-Internet based application systems. In this paper, we introduce an X-Internet based system architecture by which it is outperformed in comparing the performance to the general web based systems in terms of TPC-H benchmark test.

이 연구에서는 KODEX 개발단계와 도입 후 성과를 사례연구로 살펴보았다. 연구 결과 경영정보학 측면에서 B2B 비즈니스의 성공은 물론, 기업의 업무혁신을 가져온 것으로 나타났다. 그 동안 방송과 광고산업의e비즈니스 기반 공급망 혁신사례는 매우 드물었다. 방송광고 소재전송시스템 운영의 프로세스에 따른 성과를 소개함으로써 향후 방송광고 관련 기업들이 성공적인e비즈니스 추진을 위한 시사점을 제시하였다. 방송광고 산업을 대표하는 한국방송광고공사와 관련기업을 중심으로 방송광고 소재전송시스템의 운영 및 성과를 구체화하였다. KODEX는 방송 광고산업을 보다 효율적으로 운영할 수 있는 방안과 관련 기업들에게e비즈니스 추진의 토대를 마련하였다. 이 연구는 방송광고 관련기업e비즈니스의 성공적인 혁신사례로 참고할 수 있을 것이다.

Today, many enterprises, such as distributing, logistics, manufacturing organizations and non-profit government organizations etc., use web-based system for implementing e-business. The e-business system is the key enabler for business innovation in broadcasting and media areas. In this study, we investigated the case of Korea Broadcasting Advertising Corporation Data Express(KODEX) which focused on development process, business performance and their practice in Korea Broadcasting Advertising Corporation(KOBACO). The practical implication of this work should be guideline at activating for B2B(Business to Business) business process innovations and improving business performance between KOBACO and their business partners.

현대 사회는 적은 자녀만 낳아 키우는 추세이다. 그러다보니 학부모들은 자녀의 창의적 사고방식에 대해 관심이 많아지고 새로운 교육 방식을 찾기 시작하였다. 육아종합지원센터는 다양한 장난감 및 도서 대여를 통해 아동에게는 신체 및 정서적, 사회성을 향상시켜주고 부모에게는 가계 부담을 경감시켜주는 긍정적 효과를 제공하고 있다. 본 논문에서는 육아종합지원센터에서 운영하는 장난감 도서관을 효과적으로 활용할 수 있는 대여 반납 시스템을 설계하고 구축한다. 제안하는 시스템은 사용자 누구나 육아종합지원센터에서 운영하는 모든 지점의 품목을 쉽게 검색하고 대여 및 반납 내역을 관리할 수 있도록 한다. 관리자는 대여 및 반납 처리 시스템을 통해 발생하는 대여, 반납, 연체 등의 데이터를 관리하고, 이때 만들어지는 데이터들의 통계를 통해 육아종합지원센터를 효과적으로 운영할 수 있다. 또한, 아동에게는 다양한 놀이문화를 제공하고 가정에 문화적 혜택을 제공해 부모의 양육 부담을 경감시킬 것을 기대한다.

Modern society has a tendency to raise fewer children. As a result, parents became more interested in their children's creative ways of thinking and began to look for new ways of teaching. The child care support center expects a positive effect by lending various toys and books to improve the physical, emotional and social characteristics of children and to help reduce household burden on parents. In this paper, we design and implement a rental return system to effectively utilize a toy library operated by the child care support center. The proposed system makes it easy for any user to search for items in any branch operated by the Child Care Support Center and to manage loan return records. The administrator can manage data such as loans, returns, and past due from the rental return processing system, and effectively operate the child care support center through statistics of data generated. Children are expected to be given a variety of entertainment cultures and cultural benefits to their families to ease the burden of parenting.

This paper develops an integrative model for IT continuance in the internet shopping environments by integrating the expectation-confirmation and the switching cost factors. Using this model, in addition, this study investigates their differential effects on the mediating variables, such as user satisfaction, commitment, and trust which have been identified as antecedents of users" IT continuance intention. Results show that the product and service-related expectation confirmation factors and the relational switching cost factor can have greater impacts on users continuance intention than the web site design factors, and the financial and procedural switching cost factors. In particular, it is interesting to note that relational switching cost can lead users to more commitment, which is revealed as the strongest antecedent of their continuance intention to use a certain shopping site.

This study aimed to design and build a web-based decision support system for wheat cultivation management. The system is designed to collect and measure the weather environment at the growth stage on a daily basis and predict the soil moisture content. Based on this, APSIM, one of the process-based crop models, was used to predict the potential yield of wheat cultivation in real time by making decisions at each stage. The decision-making system for wheat crop management was designed to provide information through a web-based dashboard in consideration of user convenience and to comprehensively evaluate wheat yield potential according to past, present, and future weather conditions. Based on the APSIM model, the system estimates the current yield using past and present weather data and predicts future weather using the past 40 years of weather data to estimate the potential yield at harvest. This system is expected to be developed into a decision support system for farmers to prescribe irrigation and fertilizer in order to increase domestic wheat production and quality by enhancing the yield estimation model by adding influence factors that can contribute to improving wheat yield.

Product recommender system is one of the most popular techniques for customer relationship management. In addition, collaborative filtering (CF) has been known to be one of the most successful recommendation techniques in product recommender systems. However, CF has some limitations such as sparsity and scalability problems. This study proposes hybrid cluster analysis and case-based reasoning (CBR) to address these problems. CBR may relieve the sparsity problem because it recommends products using customer profile and transaction data, but it may still give rise to scalability problem. Thus, this study uses cluster analysis to reduce search space prior to CBR for scalability problem. For cluster analysis, this study employs hybrid genetic and K-Means algorithms to avoid possibility of convergence in local minima of typical cluster analyses. This study also develops a Web-based prototype system to test the superiority of the proposed model.

A Web-based dynamic simulation system, called O-DYN, for multibody dynamic systems is developed. All the interfaces of the system are accessible via Web browsers, such as Netscape or Explorer. The system uses a block-diagram type O-DYN/Modeler developed in JAVA Applet as a preprocessor. The O-DYN postprocessor composed of O-DYN/Plotter and O-DYN/Animator is developed in JAVA Applet. The O-DYN/Solver for predicting the dynamic behavior is run on the server. Anyone who wants to simulate the dynamics of multibody systems or share results data can access the analysis system over the Internet regardless of their OS, platform, or location.

VOD (Video-on-Demand) 서비스는 사용자가 원하는 비디오를 언제든지 볼 수 있도록 해 준다. 고속의 컴퓨터 네트워크의 발달로 웹 기반 VOD 서비스가 가능하게 되었다. VOD 서비스를 지원하기 위해서는 요금 부과 기법이 필요하다. VOD 요금 부과 기법으로 사용자가 시청한 분량에 따라 요금을 부과하는 pay-per-view를 생각할 수 있다. VOD에서 사용자의 사생활 보호 또한 중요한 이슈가 된다. 사용자는 자신의 시청 정보를 타인에게 노출시키고 싶지 않을 것이다. 이를 위해서 VOD 서비스에 익명성을 제공할 필요가 있다. 익명성 제공은 VOD 서비스 요금 계산을 복잡하게 한다. 익명성 제공과 요금 계산을 함께 지원하는 VOD 기법이 필요하다. 이 논문에서는 익명성이 제공되는 웹 기반 VOD 서비스가 제안된다. 제안된 기법은 사용자의 시청 분량에 따라 요금을 부과하는 pay-per-view 기능을 지원한다.

Video-on-demand (VOD) service allows subscribers to view any video whenever they want. With the development of the high speed computer networks, web-based VOD services are available. To support VOD services, charging scheme is necessary. Pay-per-view is an effective charging scheme for VOD services. Pay-per-view allows the subscribers to pay for what they have viewed. Privacy is another important attribute for VOD services. The subscribers may not want to reveal what they have viewed to anyone including the VOD provider. Anonymity makes it complicated to calculate charge for the VOD service. An approach that achieves both anonymity and pay-per-view charge calculation is necessary. In this paper, anonymous web-based VOD service is proposed. The proposed approach also gives pay-per-view capability.

An issue of globalized and competitive business environment is a transformation of manufacturing strategy for rapidly product development. To copy with these trends, building up a market from various product is becoming conspicuous the core strategy of manufacture. Therefore, it is increasing of necessity for the environment of collaborative product development. As a part of corresponding for these demands, we propose the method that allows easy and rapid integration of legacy resources within the company and between departments. The proposed framework can easily construct a distributed environment for collaborative design between departments in the companies. It was implemented using CO/sup TM/ based on DOME (Distributed Object-based Modeling Environment) that is knowledge based engineering solution.

A Control system is the combinations of components (electrical, mechanical, thermal, or hydraulic) that act together to maintain actual system performance close to a desired set of performance specifications. The trend in most systems is that they are connected through the Internet. Traditional Supervisory Control and Data Acquisition Systems (SCADA) is connected only in a limited private network Since the internet Supervisory Control and Data Acquisition Systems (SCADA) facility has brought a lot of advantages in terms of control, data viewing and generation. Along with these advantages, are security issues regarding web SCADA, operators are pushed to connect Control Systems through the internet. Because of this, many issues regarding security surfaced. In this paper, we discuss web SCADA and the issues regarding security. As a countermeasure, a web SCADA security solution using crossed-crypto-scheme is proposed to be used in the communication of SCADA components which extends through the internet.

Recent shifts toward digitally mediated learning have made Learning Management Systems (LMSs) essential, yet many platforms still function mainly as one-way channels for distributing content. This limitation restricts timely exchanges between instructors and learners, which in turn reduces engagement and weakens students’ sense of progress. To respond to these issues, the present study proposes a redesign of the LMS architecture grounded in three key principles of Human–Computer Interaction (HCL): Feedback, Affordance, and Adaptivity. The proposed framework was examined through a Delphi-based expert review to assess both its technical feasibility and its capacity to support more interaction-oriented system behaviors. Findings indicate that embedding HCL principles into the LMS structure substantially strengthens real-time feedback mechanisms and contributes to more interactive learning experiences.

This paper presents a flexible service framework for tour-and-charging schedulers based on web services, aiming at providing an energy-efficient tour schedule services to electric vehicles. For a rent-a-car system which is a promising business model capable of dealing with high cost of electric vehicles, this service decides the visiting order for renters who want to visit multiple tour spots and need to have their vehicles charged during their trips. Mobile applications, running on Android operating systems, take the user selection via Google Map interface and submit to the scheduler by means of well-known Simple Object Access Protocol (SOAP). The tour scheduler implements not only a genetic algorithm to decide the visiting order for the given spot set but also a point-to-point A* algorithm to find an appropriate route between two consecutive spots on a graph-style road network, which necessarily contains the locations of charging facilities. Every parameter and result is encapsulated by KSOAP to comply with .NET platform. This service can enriches the smart transportation service, especially in long-term and short term rental and sharing businesses.

인터넷 통신에서 과성장한 트랜잭션은 웹 응용 프로그램에 의존한다. 이것은 많은 위협요소의 대상이 된다. 이 논문은 웹 응용을 위한 보안 기술과 어떻게 보안 프로그래밍을 하는 것이 침입자들이 시스템을 파괴하는 것으로부터 막아줄 수 있는지에 대해서 집중해 본다. 본 논문은 웹 응용을 정의하고, 웹 응용의 구조에 대해서 논의한다. 또한 웹 응용의 보안을 논의하고, 정보 보안 계획의 기본 원리에 대해서 살펴본다.

The overgrowing field of Internet communication, transactions depends on web applications. This has also become the target many threats. This paper focuses on security techniques for web applications and how the implementation of security through programming can keep intruders from wreaking havoc on your system. The paper will define a web application and discuss the architecture of the web application. This paper will discuss security in web applications and will look at the basic rules in information security planning.

This paper investigates the issue of performance testing on web browsing environments. Among the typical non-functional characteristics, index of link validity will be deeply explored. A framework to certify link correctness in web site is proposed. All possible navigation paths are first formulated to represent a usage model with the Markov chain property, which is then used to generate test script file statistically. With collecting any existing failure information followed by tracing these testing browsed paths, certification analysis may be performed by applying Markov chain theory. The certification result will yield some significant information such as: test coverage, reliability measure, confidence interval, etc. The proposed mechanism may provide not only completed but also systemic methodologies to find any linking errors and other web technologies errors. Besides, an actual practice of the proposed approach to a web-based system will be demonstrated quantitatively through a certification tool.