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디지털방송의 꽃 DMB(Digital Multimedia Broadcasting)
차환주,Cha, Hwan-Ju 한국기술사회 2005 技術士 Vol.38 No.3
DMB(Digital Multimedia Broadcasting) Service was started, DMB enables people on the move to enjoy seamless video streaming, theater-quality audio and data through a hand-held digital device much like a handset or an in-car terminal. Realization of any-time, any-where, any-device, any-one DMB Service is needed for the government effective policy, Technical R&D and Standization, Corporate investment.
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소프트웨어 분할 발주하에서의 위험요인 평가에 관한 연구
차환주(Hwan-Ju Cha),김자희(Ja-Hee Kim),김우제(Woo-Jae Kim) 한국IT서비스학회 2009 한국IT서비스학회 학술대회 논문집 Vol.2009 No.3
최근 공공기관에서는 소프트웨어 산업의 선진화를 위하여 소프트웨어 분할발주 제도를 도입 검토하고 있다. 성공적인 제도 도입을 위해 사전에 고려해야 하는 사항을 제도 도입시 예상되는 위험요인 도출 및 분석, 평가를 통해 파악하고자 한다. 먼저 문헌연구를 통해 소프트웨어 산업의 일반적인 위험요인을 바탕으로, 설문조사를 통해 분할발주 하에서의 위험요인의 영향도 변화 파악 및 추가 위험요인을 도출한다. 이를 바탕으로 AHP기법을 통해 위험요인간 우선순위를 분석하여 위험요인 평가모델을 제시한다.
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차환주(Hwan-Ju Cha),김자희(Ja-Hee Kim) 한국경영과학회 2016 韓國經營科學會誌 Vol.41 No.1
Although the demand for IT outsourcing (ITO) has increased recently because of the recent recession, concerns about business discontinuity in the transition phase cause companies to hesitate to adopt ITO. Therefore, a guideline to improve the prospects is needed. However, studies on the success factors of the transition phase in ITO are lacking. In this study, we develop an expert hierarchical value map (HVM) of the success of the transition phase in ITO by using cognition scientific methodologies. We empirically verify how success factors affect the success of the transition phase. Specifically, we derive an HVM of main stakeholders by using in-depth interviews and approaches, such as repertory grid technique (RGT) and laddering, based on means–end chain theory. We validate the success factors empirically through a bipolar analysis of RGT. Finally, we determine the most important cluster of success factors through cluster analysis.
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차환주(Hwan ju Cha),김자희(Ja Hee Kim) 한국IT서비스학회 2015 한국IT서비스학회지 Vol.14 No.2
The IT outsourcing industry has been widespread for decades since the growth of the system integration industry stagnates and companies need to curtail expenses and improve the quality of IT services. According to previous studies on the success factors of the IT outsourcing, its transition phase is significant because of continuity of business and the handover of knowledge. Since a transition phase consists of several projects, but its goal is different from general projects, it needs special and professional management. Therefore, recent IT outsourcing business starts to introduce PMO (project management offices), of which success strongly depends on the competencies of the PMO. However, there are only few studies on which competencies of the PMO are important. In this paper, we suggest an evaluation model of transition PMO competencies derived using the repertory grid technique and the analytic hierarchy process. Additionally, we compare the differences between the views of several stakeholders on the importance of the competencies.
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