Yutaka Kigawa

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In an information-oriented society, the security of information related assets in organizations is one of chief concerns and the importance of security evaluation system to grasp their security level is increasing. We also consider that the magnitude of risk to information assets is highly dependent on the scales, forms, treat etc. of the organization, and(More)
The e-learning system become one of main important tool in current educations, and several types of systems are proposed or developed on commercial or non-commercial base. Some of them are still remained at the level of only displaying materials and giving tests on them. There are off course some user oriented systems proposed by researchers where learners'(More)
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