2011, Vol.6, No.1

Journal of Knowledge Information Technology and Systems 2023 KCI Impact Factor : 0.89

pISSN : 1975-7700 / eISSN : 2734-0570
https://journal.kci.go.kr/kkits

The main objective of Enterprise Architecture (EA) is to coordinate among the components of the architecture and to bridge the gap between the changes in business process and advancement of technology. Despite its use, popularity and continuing researches, there are still shortcomings in exiting EA in the areas such as addressing legacy system, reliability, affordability, maintainability, and interoperability. Adaptation in line with changes in business process and technology is still considered a critical challenge. In this paper, we address such critical challenges with use of Service Oriented Architecture (SOA), Product Line Architecture (PLA), Expert System (ES) and also Cloud Computing. The proposed architecture provides the features such as adaptability, reusability, maintainability and scalability.

This paper presents a detailed characterization study of Web 2.0 workload through an analysis of real-world Web access logs collected from Tistory, one of the largest blog hosting services in South Korea. Compared to traditional Web workloads, Tistory’s workload shows different characteristics; the content creation from a number of end users drastically changes user participation characteristics, file type properties, and static and dynamic content behavior. Therefore, we delve deeply into the user-created content by following two-tier hierarchical approach that analyzes the Tistory’s workload into the file and article level. Through this paper, the observed characteristics are approximated by theoretical distributions to provide data for generating synthetic workloads.

In current Knowledge-information Society, advanced information technology and the development of transport systems have changed psychological and physical characteristics in a city, as well as the city lifestyle. As a result, the citizens require the new city's image and environment to cope with their changed lifestyle. In this study, cognitive characteristics on the landscape, a city's images and attractions have been analyzed. The results of this study could have a potential role as a planning and design criteria which are suitable for the Knowledge-information society. The research data was collected in Sunchon-city and main results of this study are as follows:While the positive attitudes for the image of city were 'intimate(3.45)', 'traditional(3.36)' and 'amenity(3.30)', the negative attitudes were 'flat(2.63)', 'scattering(2.69)', 'un-new(2.69)',and 'monotonous(2.74)'. Total satisfactory level of the city image was estimated to be 6.18. The psychological factors related to the satisfaction of the city image were composed of five characters such as 'individuality', 'potentiality', 'pleasure', 'amenity' and 'naturalness'. The estimation formula for the satisfaction was: Satisfaction = 6.202 + 0.464(Potentiality) + 0.446(Individuality) + 0.367(Pleasure) + 0.322(Amenity) + 0.245(Naturalness) While the positive attitudes for the city attraction were 'possible of development(3.99)', 'cleanness(3.69)' and 'many heritages(3.53)', the negative attitudes were 'a few industrial facilities(2.35)' 'a few entertainments(2.42)' and 'a few cultural events(2.55)'. The total score for attraction was estimated to be 6.39.