• The Journal of Korean Association of Computer Education
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• v.16 no.2
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• pp.49-60
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• 2013

The purpose of this study was to analyze inductively Critical Success Factors of Digital Textbook-Based Instruction based on qualitative research. To accomplish the purpose of the study, D elementary school in Incheon, one of digital textbook model schools, was selected as the school for observation. Three fifth graders and their teacher were interviewed and their six lessons were used for analyzing teaching and learning activities in digital textbook-based instruction. The results of the study, 'the use of systematic strategies based on multimedia features', 'information literacy-related questions and answers', 'specific guidance and help', 'the stability of the physical system and equipment', 'active collaborative learning and interaction', 'individual self-directed learning', 'consideration of emotional/physical changes', 'selection and concentration based upon available resources were identified as critical success factors of digital textbook-based instruction.

• Journal of the Korea Institute of Military Science and Technology
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• v.19 no.6
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• pp.703-711
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• 2016

The purposes of this study is to identify the problems arising from current Test & Evaluation process of the naval ship acquisition program and to suggest methods to increase the acquisition efficiency. Considering that the present rule of developmental test &evaluation(DT&E) and operational test & evaluation(OT&E) has caused an inefficiency effect on the acquisition procedures due to the limited practices on it, the DT&E and OT&E procedures through test & evaluation master plan(TEMP) is proposed based on the selective practices of the defense instruction articles. Also, considering characteristics of naval ship acquisitions, efficient procedure systems are derived through case analysis results by comparing each performances of the system. The suggested methods are able to meet the requirements of the changed acquisition environments and also increase efficiency of acquisition systems by adoption of DT&E and OT&E combined test scheme.