Determinants of Users' Intention to Purchase Probability-Based Items in Mobile Social Network Games: A Case of South Korea

The goal of this paper was to identify factors that influence the purchase of probability-based items (PBIs) in mobile social network games (MSNGs). This paper introduces an extended research model based on the technology acceptance model. Statistical results from a survey of MSNG users find that factors that influence the purchase of PBIs include perceived enjoyment, perceived usefulness, perceived number of users, and perceived number of friends which are factors attributed to mobile game and social network characteristics, and also perceived desire for jackpot that is one of the major features of PBIs. We also analyzed the research model by gender to provide MSNG companies with a reference that may guide the development of PBI strategies that are targeted at genders. Males responded differently than females to some factors.11Ysciescopu

Health Diagnosis of Communities of Practices (CoPs)

The purpose of this study is to provide a multi-level framework to diagnose the structural healthiness of CoPs and present a new metric, Bottleneck Impact Score (BIS), to measure the seriousness of bottlenecks in knowledge sharing activities among CoPs members. After analyzing knowledge sharing activities of 4,414 members from 59 CoPs, we confirm that while only a small number of CoP members actively engage in both transferring and receiving knowledge, most experts are not core players and they are reluctant to share their knowledge with others. We also find that only few CoPs can be classified as knowledge “sharing” community while most of CoPs suffer from inactive participation of employees with high expertise and are diagnosed as having at least one of master-apprenticeship and knowledge drain bottlenecks. Interestingly, we also find that CoPs members in field division such as Iron&Steel, Rolling, and Maintenance department more actively participate in knowledge sharing than CoPs members in Staff department. Finally, BISs are used to measure and compare the seriousness of six different types of bottlenecks in CoPs and departments

Toward Optimal Financial Reward Allocation for Promoting Knowledge Sharing Activity in CoPs

The purpose of this study is to introduce CoP reward allocation (COREA) system that efficiently solves a mathematical optimization problem to optimally allocate limited financial reward and to promote knowledge sharing activities in CoPs. To test the validity and usefulness of COREA, we simulate three knowledge sharing climates in which the majority of CoPs performs below-, on-, or above-average. In addition, we also allow knowledge sharing activity of CoPs to improve or deteriorate over years in each climate. Our experimental results confirm that the proposed COREA system performs significantly better than the currently available reward system over various scenarios. In particular, the COREA system finds approximately optimal financial reward allocations for many cases in which the current reward system fails to find solutions that meet constraints

Round-Trip System Available to Measure Path Length Variation in Korea VLBI System for Geodesy

The construction project of Korea Geodetic VLBI officially started in October 2008. The construction of all systems will be completed by the end of 2011. The project was named Korea VLBI system for Geodesy (KVG), and its main purpose is to maintain the Korea Geodetic Datum. In case of the KVG system, an observation room with an H-maser frequency standard is located in a building separated from the antenna by several tens of meters. Therefore KVG system will adopt a so-called round-trip system to transmit reference signals to the antenna with reduction of the effect of path length variations. KVG s round-trip system is designed not only to use either metal or optical fiber cables, but also to measure path length variations directly. We present this unique round trip system for KVG

정부출연 연구기관 경쟁력 분석 모형 개발

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Comprehensive Performance Analysis of R&D programs for Enhancing Regional R&D Competence

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Measuring the Risk of Knowledge Drain in Communities of Practice

Purpose – The aim of this paper is to develop a metric that quantitatively measures the risk of knowledge drain associated with the departure of a member in communities of practice (CoP). Design/methodology/approach – This paper considers two possible cases in which departure of a member has a high risk of causing knowledge drain: when the member is a network leader, and when the member is an isolated expert. Network analysis is used to identify network influence of each member. The proposed metric is designed considering network influence and knowledge level of individual members, and applied to a case study using real-world data from an online CoP. Findings – This paper demonstrates that the proposed metric properly provides information about the members whose departure could cause serious damage to the CoP because of their strong influence or their inactivity in the network. The metric enables practitioners to identify critical members, and to enact precautions to reduce the vulnerability of the CoP. Originality/value – Compared to the threat of knowledge drain, few studies have attempted to measure the risk associated with departure of a member. This study has developed a metric to measure the risk of knowledge drain in a CoP. The approach and methods of this paper offer a foundation for designing assessment methods for knowledge networks and provide new insights into quantitative research in knowledge management.112ssciscopu

CoP Evaluation and Reward Decision Support System Based on Active Context-aware Decision-making

Recently, companies have proactively kicked off enterprise-wide knowledge management (KM) supports for their competitive advantages. And, the role of communities of practice (CoP) is increasingly important as collective knowledge-sharing seems more demanding and efficient. CoP involves several decision activities. Decision support system (DSS), a decision support tool using information systems, could play an important role in some of those activities particularly in performance evaluation and reward policies of CoP. In parallel, the trend of knowledge-sharing activities in KM has been changed from offline-base to online, mobile, and ubiquitous-base. This paper describes how both concepts of decision making and context-awareness are jointly used for making decisions with CoP activities. A model of CoP Activity Evaluation and Reward DSS (CAER-DSS) is suggested. CAER-DSS provides the functions of inquiries and controls of CoP evaluation, and supports decision makers to make reward decisions on real-time basis in ubiquitous environment.X112sciescopu

실행공동체 멤버 재구성을 통한 조직차원에서의 지식공유 활동 개선방안 연구

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