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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of the Korea society of IT services
Journal Basic Information
Journal DOI :
The Korea Society of Information Technology Services
Editor in Chief :
Lim Gyu Geon
Volume & Issues
Volume 8, Issue 4 - Dec 2009
Volume 8, Issue 3 - Sep 2009
Volume 8, Issue 2 - Jun 2009
Volume 8, Issue 1 - Mar 2009
Selecting the target year
Impact of R&D Expenditure Size on financial Performance Focused on the IT Service Industry
Lee, Yeon-Hee ; Lee, Hye-Jin ;
Journal of the Korea society of IT services, volume 8, issue 3, 2009, Pages 1~14
Due to economic turbulence and fierce competition in the IT service industry, companies have been seeking breakthrough of offerings by investing in research and development (R&D). This paper aims to examine the impact of R&D expenditure size on financial performance focusing on Korean IT service companies. The expected growth rate of revenue and net profit in the upcoming two years were analyzed based on three groups according to different R&D expenditure rates using collected data from 100 of IT service companies. Unlike our presumptions, our finding presents a non-significant relationship between the R&D expenditure size and companies' financial performance. An interesting result among others is that all companies invested in R&D strongly believe there will be an increase of their financial performance in the future.
A Web 2.0 Strategy for the Public Portal Sites : EBS Case
Lee, Ji-Eun ; Koo, Sung-Whan ; Shin, Min-Soo ;
Journal of the Korea society of IT services, volume 8, issue 3, 2009, Pages 15~33
Web 2.0 which is characterized by openness, sharing with others and users' active participation has a strong impact on Individual and business environments. New technology such as open-API, RSS, collective intelligence gives various benefits to the website user. Recently, the Web 2.0 paradigm has also affected the public service. Many public service organizations are also adopting Web 2.0 applications to improve their ability for serving users more effectively. However, there is a contradiction between value of public service and that of web 2.0. Web 2.0 which pursues openness and freedom of expression can impair the accuracy and reliability of public information in the public sites. We conducted a case study on EBS which reflects the Web 2.0 strategy for websites renewal. To cope with environmental changes, EBS began reorganization of the web site and applied Web 2.0 strategy for leveraging an easy to use and user satisfaction. This research shows that how to Implement the Web 2.0 strategy and what is the limitation of it. The findings of this study suggest practical implications for Web 2.0 strategy in public web sites, especially for educational fields.
Developing a Customized Education System in University : Application of Modular Design Concept
Cho, Sung-Eui ;
Journal of the Korea society of IT services, volume 8, issue 3, 2009, Pages 35~49
This study presents a new design method of courses and programs for interdisciplinary or customized education in university organizations. The concept of modular design in manufacturing industry is employed for the development of new courses and programs design in university education. Diverse customization methods in service processes or service delivery channels in education are excluded in this study to focus on the research purposes. The results of this study can contribute to the development of a new education system for customized or interdisciplinary education in universities.
Needs Analysis for New National Qualification and Nationally Certified Private Qualification Systems in Software Engineering
Kwon, Moon-Ju ; Kim, Min-Ha ;
Journal of the Korea society of IT services, volume 8, issue 3, 2009, Pages 51~65
National qualification system for SW engineering is intended to be mechanisms to assure the competence of SW professionals. Qualification system for SW engineering can be categorized as national qualification, nationally certified private qualification, and private qualifications. In this paper, we present a summary report of needs analysis for new national qualification systems, based on the survey from human resource department managers of IT companies in IT service, package SW and embedded SW industry. The survey results show that SW qualification system is appropriate for evaluation and career management, but does not provide up-to-date information concerning the technology assessment and change. Based on the result form needs analysis, we suggest the SW specialist and embedded SW specialist as new licenses in national qualification system. In addition, we also propose SW quality management engineer, systems management engineer, IT Protect management engineer, network management engineer and SW architect engineer, as new nationally certified private qualifications.
Value Relevance of Development Cost in IT Firms of KOSDAQ
Kym, Moon-Hyun ;
Journal of the Korea society of IT services, volume 8, issue 3, 2009, Pages 67~81
This study aims to test the valur relevance of development cost particularly focusing on IT firms of KOSDAQ. Test period is from 2005 to 2007 and the samples are 2,271 year-firms including 1,692 firms that reported development cost in financial statements. The basic test model is a modified Ohlson(1995)'s linear model. The empirical results show that there is the negative relation between stock price and development cost reported as asset. It means that development costs reported as asset is considered as expense in the market. It implies that development activities of KOSDAQ IT firms is not related to market-leading technologies or goods. Otherwise it might reflect the conservative valuation of market on the unstability of KOSDAQ market itself.
The Effects of Scope Management on Process Performance and Output Performance in the Information System Development Project : An Analysis from Project Supplier's Perspective
Park, Bong-Gu ; Lim, Gyoo-Gun ; Yoo, Weon-Sang ;
Journal of the Korea society of IT services, volume 8, issue 3, 2009, Pages 83~100
Even though the success of the information system (IS) protect becomes a critical issue to an enterprise and there has been a lot of research about finding critical success factors of IS projects, the scope management for the success of IS protect has received little attention in the literature. The purpose of this research is to investigate the effects of the project scope management activities defined by PMI (Project Management Institute) on the performance of the information system project. The focus of this paper is on the project supplier's point of view. This study shows the priority of the scope management activities during the IS Project. The results show the different results depending on the types of the project clients and the project scale. This research reveals that the scope verification is important for the project supplier from the project process view, and that the scope planning/definition is important for the protect client from the project result view. It also shows different results comparing to the conventional recognition about project success. The research results show that the positive relationships between the project scale and the importance of scope management activities, and between the familiarity of suppliers and clients and the importance of the scope management activities. Through this research, we expect that the importance of the scope management in a project will be considered as an important issue, and that this research will lead to various detailed research about this issue.
A Prefect Management Model for Developing Information Systems in Public Sector with UML
Ong, Sang-Soon ; Choi, Jae-Hyun ; Park, Jae-Won ; Lee, Nam-Yong ;
Journal of the Korea society of IT services, volume 8, issue 3, 2009, Pages 101~109
For half a century, PMM(Project Management Model) continually has been advanced by many researchers and managers. Especially, the model for civil and construct engineering has now high maturity, but the model for IT engineering has not acceptable maturity. PMI(Project Management Institute) provides the knowledge of protect management for general purpose, it is not adequate for IT prefect management without complements. In this paper, we propose IT project management model based the knowledge of PMI using UML. IT project management model provides not only functions for project planning, budgeting, design and Implement, but also the knowledge for managing IT protect efficiently. We use uses case diagrams to describe the details of the model. We expect the model to be used in management of IT project efficiently in public sector.
An Empirical Study on the Factors Affecting the User Satisfaction, Trust, and Performance of e-Communication Channel Outsourcing
Kim, Chang-Su ; Jin, Ming-Hua ; Baek, Woon-Joo ; Oh, Eun-Hae ; Mirusmonov, Mirsobit ;
Journal of the Korea society of IT services, volume 8, issue 3, 2009, Pages 111~134
We are living it what is referred to as the Digital Era; a time in which communication through the computer medium has deeply infiltrated our everyday lives and is now equivalent to face-to-face communication. In other words, e-communication is the core factor of knowledge sharing, for not only individuals but also for corporations, and its efficiency has increased gradually. At this time, studies on the factors affecting the outsourcing performance of e-communication channel services are gaining importance. Therefore, the purpose of this study is to empirically analyze the effects of the system, information, and service quality on the user satisfaction and user trust of e-communication channel outsourcing, as well as the effects of user satisfaction and user trust on the outsourcing performance of both individuals and organizations. In the results of the empirical study, the system, Information, and service quality appear to have a significant effect on both user satisfaction and user trust. In addition, user satisfaction and user trust appear to also have a significant effect on the outsourcing performance of both Individuals and organizations.
A Descriptive Study of IT Outsourcing Risk Factors in the Korean Company
Moon, Song-Chul ;
Journal of the Korea society of IT services, volume 8, issue 3, 2009, Pages 135~143
The Outsourcing Industry has grown swift pace and evolved over time, and the Global IT Outsourcing market has shown signs of a steady growth. In the Korean company, however, IT Outsourcing is not active as that of the advanced countries and there is lack of literature to understand the characteristics of IT Outsourcing in the Korean company. This paper, therefore, analyze the outcomes surveying 65 companies in Korea to investigate how IT Outsourcing risk factors affects IT Outsourcing intention. Based on our literature reviews based on number of key articles, journals, and the focus group interviews, IT Outsourcing risk factors are proposed into four different domains: Transaction, Client, Vendor, Environment perspectives. It found that one factor(Vendor perspectives) is closely related to the IT Outsourcing intention of the Korean company. Finally, this paper analyzed the pros and cons of IT Outrcing offers a guide to the risk factors.
Two-Pass Abstraction Principle for Identifying Reusable Object
Ko, Hyung-Ho ; Kim, Neung-Hoe ; Lee, Dong-Hyun ; In, Hoh Peter ;
Journal of the Korea society of IT services, volume 8, issue 3, 2009, Pages 145~157
As the software development cycles is getting shorter, the software reusability is emphasized accordingly. Specifically, the design reusability is being recognized as one of the most important factor to increase the software quality and productivity and make the maintenance cost down. Two essential abilities are needed to improve the design reusability. One is the identification of the reusable objects, and the other is the organization of the relationships among the objects. However, the existing methods using such as a grammatical analysis, a scenario matching and a unit of design problems(design pattern) have not been proposed proper principles to identify the reusable objects on the basis of the abstraction which is the core of the object-oriented concept. In this paper, we will offer the Two-Pass abstraction principle based in the abstraction concept.
A Study on Implementation of Automobile Control Software Testing Process Based on TMMi
Jang, Jin-Wook ;
Journal of the Korea society of IT services, volume 8, issue 3, 2009, Pages 159~169
The issue of method of software testing process implementation has recently been in the spotlight in korea and some vendor make every effort to improve the software testing process through the evaluation of TMMi. The level of software process is at initial level, nevertheless, so the high quality of software is not guaranteed. This paper apply to the TMMi Level2 Assessment criteria of Automobile control software testing process. The test policy and strategy, test planning, test monitoring and control, test design and execution, test environment goal. The result need to emerge development process connection on the test policy and strategy process, test planning process etc. Also, the study analyzed the infra structure to reach the repeated level via key process area. As the result the process implementation in organization suggests the policy development and the implementation activity. Finally, the practical can refer to this paper in order to implementation the software testing process.
An Efficient Hybrid Lookup Service Exploiting Localized Query Traffic
Lee, Sang-Hwan ; Han, Jae-Il ; Kim, Chul-Su ; Hwang, Jae-Gak ;
Journal of the Korea society of IT services, volume 8, issue 3, 2009, Pages 171~184
Since the development of the Distributed Hash Tables (DHTs), the distributed lookup services are one of the hot topics in the networking area. The main reason of this popularity is the simplicity of the lookup structure. However, the simple key based search mechanism makes the so called "keyword" based search difficult if not impossible. Thus, the applicability of the DHTs is limited to certain areas. In this paper. we find that DHTs can be used as the ubiquitous sensor network (USN) metadata lookup service across a large number of sensor networks. The popularity of the Ubiquitous Sensor Network has motivated the development of the USN middleware services for the sensor networks. One of the key functionalities of the USN middleware service is the lookup of the USN metadata, by which users get various information about the sensor network such as the type of the sensor networks and/or nodes, the residual of the batteries, the type of the sensor nodes. Traditional distributed hash table based lookup systems are good for one sensor network. However, as the number of sensor network increases, the need to integrate the lookup services of many autonomous sensor networks so that they can provide the users an integrated view of the entire sensor network. In this paper, we provide a hybrid lookup model, in which the autonomous lookup services are combined together and provide seamless services across the boundary of a single lookup services. We show that the hybrid model can provide far better lookup performance than a single lookup system.
A Study on Improvement of OLTP Server Sizing Method
Ra, Jong-Hei ; Choi, Kwang-Don ;
Journal of the Korea society of IT services, volume 8, issue 3, 2009, Pages 185~195
Hardware sizing is determinated by an increasing rate of operated business and characteristic of adapted technology which are imported systems. Because it is very difficult for intuitive decision of hardware sizing's appropriateness. But in sprite of difficulty, for maximizing the utilization of information resource and the effect of information investment in public sector are need to correctness hardware sizing. In this paper, we proposed hardware sizing method for OLTP server that is make up It's faults of proper proposal method. Our study certainly will act as a catalyst for higher investment-efficiency of future information systems in public sector.
Introducing an IT Based Business Model in Korean Wedding Service Market from the Viewpoint of Service Science
Kim, Sung-Hyun ; Zo, Yung-Ho ;
Journal of the Korea society of IT services, volume 8, issue 3, 2009, Pages 197~207
Korean wedding service market is composed of various interlinked service elements that must be carefully managed in detail. This thesis introduces a new IT based business model which has been operating in this complex wedding service market for the past ten years. By introducing how each business model has been applied to Service Science, it will set a good example for the subsequent research in the similar fields by providing business's actual operation model and examples. Furthermore, this thesis will contribute to the development of both new study of Service Science and a new business model by illustrating how they beneficially affected each other and advanced as a result of applying outcomes of each business model to the development of the current business model.
Analysis and Service Design of Mass Media Drama : 'The 1st Shop of Coffee Prince'
Lee, Jung-Kyo ; Jee, Hae-Seong ;
Journal of the Korea society of IT services, volume 8, issue 3, 2009, Pages 209~221
The successful mass media drama, 'The 1st Shop of Coffee Prince', has received lots of supports from the audience by showing them a vivid life and also enabling them to dream a real fantasy. One among the most powerful strategies that made this drama stay successful is the marketing value of the drama space fully maximized when doing the production. This study, introducing a unique representation of 2-D cell matrix with x-y plots of drama space set along the time stream following the scenario, first proposes a quantitative way of uncovering the hidden relation between drama space and scenario using nonlinear matrix filtering method and, secondly, suggests possible service designs mainly constrained by economical standpoints of the stakeholder in producing the drama. The methodology may invoke a plausible contradiction with art instincts that have hardly been supposed to be affected by financial debate, which, nevertheless, must sometimes be allowed under the circumstance of pursuing optimality in programming and producing the drama that must survive in the world of competitive market of service business.
A Method to Model Convergent Services
Han, Young-Seok ; Oh, Chang-Kuen ;
Journal of the Korea society of IT services, volume 8, issue 3, 2009, Pages 223~232
The most popular convergent services are being made mostly out of IT related services and devices. To help understand the underlying principles making convergent services the paper suggests a logical view of converging process. A service is assumed to consist of unit services that can be used in algorithmic operations to form a new convergent service. Convergence operations for a couple of unit services are typed according to whether the unit services are modified. Internal convergence leads to a new service from a combination of sub units of the two unit services. External convergences do not alter original unit services but simply combine them to form a new service. The paper also suggests several measurements to evaluate the convergent services with respect to the existing services used to create the new convergent service.