• 한국전자거래학회지
• /
• 제4권1호
• /
• pp.117-143
• /
• 1999

As information technology becomes an increasingly intrinsic part of business operations and it's use has grown more widespread and ingrained, the demand for study on the CIO's leadership increases.. This study was accomplished to analyze the effect that CIO's transformational and transactional leadership have on leadership performance in pursuit of the ideal leadership required of CIO. The study results reveal the followings. First, CIO's transformational. transactional, and laissez faire leadership is statistically related with leadership performance. Especially, the transformational leadership was more correlated with leadership performance than transactional leadership. Second, leadership performance both of transformational leader and transactional leader was higher than than of laissez faire leader. But leadership performance between transformational leadership and transactional leadership was not statistically significant. Third, many CIOs turn out to possess both transformational and transactional leader's trait, and therefore, the subjects were categorized into the three groups such as: purely transformational leaders, purely transactional leaders, and transformational-transactional leaders. The result shows that leadership performance was high in order of transformational-transactional leader, purely transformational leader, and purely transactional leader. It reveals that leaders possessing both transformational and transactional leadership were more acceptable than the others to the subordinates.

• 서비스연구
• /
• 제6권2호
• /
• pp.133-151
• /
• 2016

본 연구의 목적은 창조경제의 중심 산업인 IT 업계에서 정보기술의 활용이 고용 창출에 어떠한 영향을 미치고 있는가, 기업의 전략 및 정보기술의 활용과의 연계성은 어떠한가, 그리고 기업의 전략이 정보기술의 활용과 고용 창출에 어떠한 영향을 미치는가를 실증적으로 검증하려는데 있다. 187개의 기업을 대상으로 수집된 자료를 분석한 결과 창조경제 산업계에서 정보기술은 효율, 위협, 기능, 공격, 그리고 통합 모든 차원에서 경쟁력을 제공하여 고용 창출에 기여하고 있는 것으로 밝혀졌다. 기업의 전략이 정보기술의 활용과 고용 창출간의 관계에 미치는 조절 효과는 각 전략에 따라 그 효과가 서로 다른 것으로 판명되어, 경영 전략 수립 과정에서 정보기술의 활용 특성을 신중하게 고려하여야 한다는 점을 시사하고 있다.

• Clinics in Orthopedic Surgery
• /
• 제10권4호
• /
• pp.491-499
• /
• 2018

Background: Advances in surgical techniques, implant technology, radiotherapy, and chemotherapy have increased the recovery chances of patients with bone sarcomas. Accordingly, patients' expectations on life quality have also increased, highlighting the importance of objective evaluation of the functional results of reconstruction. Methods: Thirteen patients with distal femoral endoprosthesis, who had been followed for an average of 2.9 years were evaluated. Postural stability, daily energy expenditure, muscle power, and range of motion were the four parameters analyzed in this study. The Musculoskeletal Tumor Society (MSTS) score and Toronto Extremity Salvage Score (TESS) were used to assess postoperative function and examine correlations with other parameters. Results: Patients had sedentary activities in 84% of their daily lives. They exhibited a slower speed in the walk across test and a higher sway velocity in the sit-to-stand test (p = 0.005). MSTS scores were significantly correlated with the daily energy expenditure and walking speed. Conclusions: Objective functional results acquired from various clinics will provide significant data to compare reconstruction techniques, rehabilitation protocols, and surgical techniques. In this way, it will be possible to satisfy the expectations of patients that increase in relation to enhanced recovery.

• Clinics in Orthopedic Surgery
• /
• 제10권4호
• /
• pp.508-512
• /
• 2018

Foraminal decompression using a minimally invasive technique to preserve facet joint stability and function without fusion reportedly improves the radicular symptoms in approximately 80% of patients and is considered one of the good surgical treatment choices for lumbar foraminal or extraforaminal stenosis. However, proper decompression was not possible because of the inability to access the foramen at the L5-S1 level due to prominence of the iliac crest. To overcome this challenge, endoscopy-based minimally invasive spine surgery has recently gained attention. Here, we report the technical skills required in unilateral extraforaminal biportal endoscopic spinal surgery using a $30^{\circ}$ arthroscope to enable foraminal decompression at the L5-S1 level. Two 0.8-cm portals were created 2 cm lateral from the lateral border of the pedicles at the L5-S1 level. After sufficient working space was made, half of the superior articular process (SAP) in the hypertrophied facet joint was removed using a high-speed burr and a 5-mm wide osteotome, whereas the remaining inside part of the SAP was removed using a Kerrison punch and pituitary punch. The foraminal ligamentum flavum should be removed to inspect the conditions of the L5 exiting root and disc. Removing of the extruded disc could decompress the L5 root. The extraforaminal approach using a $30^{\circ}$ arthroscope is considered a minimally invasive alternative technique for decompressing foraminal stenosis at the L5-S1 level that preserves facet stability and provides symptomatic relief.

• Clinics in Orthopedic Surgery
• /
• 제10권4호
• /
• pp.420-426
• /
• 2018

Background: The tibial tuberosity-trochlear groove (TT-TG) distance is used to determine the necessity of tibial tubercle osteotomy. We conducted this study to determine the extent to which each of the tibial tuberosity lateralization, trochlear groove medialization, and knee rotation angle affects the TT-TG distance in both normal and patella dislocated patients and thereby scrutinize the rationale for tuberosity transfer based on the TT-TG distance. Methods: Retrospective analysis of rotational profile computed tomography was done for patella dislocated and control group patients. Femoral anteversion, tibial torsion, knee rotation angle, tuberosity lateralization, and trochlear groove medialization were assessed in all patients. Relationship of these parameters with the TT-TG distance was investigated to evaluate their effects on the TT-TG distance. Results: We observed that the patellar dislocation group, compared to the control group, had increased TT-TG distance (mean, 19.05 mm vs. 9.02 mm) and greater tuberosity lateralization (mean, 64.1% vs. 60.7%) and tibial external rotation in relation to the femur (mean, $7.9^{\circ}$ vs. $-0.81^{\circ}$). Conclusions: Tuberosity lateralization and knee rotation were factors affecting patellar dislocation. These factors should be considered in addition to the TT-TG distance to determine the need for tibial tubercle osteotomy in patients with patellar dislocation.

• 정보관리연구
• /
• 제42권2호
• /
• pp.211-234
• /
• 2011

The development of information technology improves the globalization of the world economy. This change was able to expand the cyber space, and the online community known as the cyber community is made within the existing offline community. From the cyber community's activity, the concept of social network services created, and recently developed social computing. Social computing is the current situation and the next step in the online community. Currently, most CIOs are using social computing for workplace empowerment. As online transactions become more active, the strategy to increase customer loyalty in Internet shopping is an effective tool to increase profit for the company, and as a method to maintain competitive. With the growth of electronic commerce, through insurance of customer loyalty on the Internet, a company can establish a long-term relationship with customers, so for this, it is important to have reliable relationship with customers. Also, through advertisement and commercial information, the cognition of Internet shopping looks can be effective in retaining customers. In this study, it explores how social computing and trust and cognition of Internet shopping are effective in maintaining customer loyalty. As the result of study, the trust and cognition of Internet shopping are significantly effective on customer loyalty, but the sense of social computing. Still, social computing has not matured enough to be as effective in retaining customer loyalty. However, it does indicate that social computing has significantly increased the trust and cognition in Internet shopping. In this study, as the concepts of the social network service and social computing are applied in Internet shopping, which are actively discussed by scholars, it is expected that the basis of the study could improve and present the idea of social shopping.

• 서비스연구
• /
• 제10권1호
• /
• pp.69-83
• /
• 2020

본 연구는 문헌 연구를 통하여 제4차 산업혁명의 성공요인을 도출하고, 제4차 산업혁명을 선도하는 산업계 경영진에게 설문을 통하여 이들 성공요인을 실증적으로 검증하는데 있다. 문헌 연구 결과, 리더쉽', '변화관리', '최고경영층 지원', '전략적 조화', '교육훈련', '의사결정 위양', '팀워크', '조직문화', '소통', '프로젝트 관리'의 10개의 성공요인이 도출되었다. 제4차 산업혁명에 관련된 산업계에 해당되는 기업의 CIO와 CEO를 대상으로 설문조사를 실시하였고, 설문 조사로서는 상당히 높은 64.4%의 응답률을 보였다. 설문 분석 결과 응답자는 '전략적 조화', 가장 중요한 성공요인으로 이어서 '최고경영층 지원', '리더쉽', '변화관리', '프로젝트 관리', '팀워크', 소통', '교육훈련', '조직 문화', 의사결정 위양' 순으로 평가하였었다. 제4차 산업혁명의 성공적인 추진을 위해서는 (1) 추진 전략의 구체화와 정교화, (2) 정부, 공공기관, 연구기관, 대학, 산업계의 효과적인 네트워크 구축, (3) 전략적이고 장기적인 계획, (4) 추진 전략의 차별화와 글로벌 협력체계 구축이 요청된다.

• 서비스연구
• /
• 제9권1호
• /
• pp.73-86
• /
• 2019

본 연구는 제4차 산업혁명과 기술 상용화에 대해 논의하고, 기술 상용화에 영향을 미치는 성공 요인을 문헌 연구를 통하여 도출하여, 제4차 산업혁명을 주도하는 산업계 경영진에게 설문을 통하여 이들 요인을 실증적으로 검증하였다. 문헌연구 결과 기술 상용화에 영향을 미치는 11가지 성공 요인은'대화와 소통','경영층 지원','경영에 대한 이해','기술 상용화의 이해','관련자간의 협력','기술 상용화 장려책','공동목표 인식','정부 지원','기술 상용화 경험', '기술의 구체성','수요자 요청 기술'이었다. 404부의 설문지를 제4차 산업혁명 업계에 속하는 기업의 CEO와 CIO에게 발송하였고, 최종 응답률은 64.4%(260부)로서 상당히 높은 참여율을 보였다. 응답자들은 제4차 산업혁명의 기술 상용화에 가장 중요한 요인으로'관련자간의 협력'을 꼽았고, 뒤이어'경영층 지원','대화와 소통','공동 목표 인식','기술 상용화에 대한 이해'순으로 평가하였다. 기업이 제4차 산업혁명의 기술 상용화 프로젝트의 성공 가능성을 제고하기 위해서는, 본 연구에서 높은 평가를 받은 성공 요인들에 높은 관심을 가지고 사업을 추진하여야 할 것이다.

• 한국산업정보학회논문지
• /
• 제10권2호
• /
• pp.48-58
• /
• 2005

CIO는 전산부서의 관리자가 아니라 경영자로서의 역할을 하도록 요구하고 있다. 이러한 관점에서 CIO 리더십 스타일과 IS 성과와의 관계를 알아보고자 하였다. CIO 리더십 스타일을 추진목표와 추진방법에 따라 분류하고 이들 간에 어떠한 차이가 있는지를 실증적으로 분석하였다. 리더십을 추진목표 관점 및 업무추진방법 관점에서 각각 병행적 리더십과 절충적 리더십을 추가함으로써 이중성(duality) 관점에서의 리더십 균형성에 대한 연구를 제시함으로써 기존의 리더십 관점과 다른 관점에서 분류하는 새로운 접근법을 제안하였다. 결과적으로 CIO 리더십이 효과적이기 위해서는 상황에 맞게 추진목표 및 추진방법 관점에서의 리더십이 발휘되는 것이 중요하며 이러한 점은 CIO 직제와 권위에 중요한 시사점을 제시하고 있다.

• Clinics in Orthopedic Surgery
• /
• 제10권4호
• /
• pp.455-461
• /
• 2018

Background: Surgical-site, multimodal drug injection has recently evolved to be a safe and useful method for multimodal pain management even in patients with musculoskeletal trauma. Methods: Fifty consecutive patients who underwent plating for mid-shaft and distal clavicular fractures were included in the study. To evaluate whether surgical-site injections (SIs) have pain management benefits, the patients were divided into two groups (SI and no-SI groups). The injection was administered between the deep and superficial tissues prior to wound closure. The mixture of anesthetics consisted of epinephrine hydrochloride (HCL), morphine sulfate, ropivacaine HCL, and normal saline. The visual analogue scale (VAS) pain scores were measured at 6-hour intervals until postoperative hour (POH) 72; stress biomarkers (dehydroepiandrosterone sulfate [DHEA-S], insulin, and fibrinogen) were measured preoperatively and at POH 24, 48, and 72. In patients who wanted further pain control or had a VAS pain score of 7 points until POH 72, 75 mg of intravenous tramadol was administered, and the intravenous tramadol requirements were also recorded. Other medications were not used for pain management. Results: The SI group showed significantly lower VAS pain scores until POH 24, except for POH 18. Tramadol requirement was significantly lower in the SI group until POH 24, except for POH 12 and 18. The mean DHEA-S level significantly decreased in the no-SI group ($74.2{\pm}47.0{\mu}g/dL$) at POH 72 compared to that in the SI group ($110.1{\pm}87.1{\mu}g/dL$; p = 0.046). There was no significant difference in the insulin and fibrinogen levels between the groups. The correlation values between all the biomarkers and VAS pain scores were not significantly different between the two groups (p > 0.05). Conclusions: After internal fixation of the clavicular fracture, the surgical-site, multimodal drug injection effectively relieved pain on the day of the surgery without any complications. Therefore, we believe that SI is a safe and effective method for pain management after internal fixation of a clavicular fracture.