• Journal of Digital Convergence
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• v.10 no.6
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• pp.61-69
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• 2012

The SW market has greatly growing up according as rapid progressing of the smart fusion, nowadays. But, the portion of Korea in the global SW market is no more than 2.2%. Especially, the portion of Korea's package SW is very much fragile than it of the global companies and lower than it of embedded SW in Korea. It is caused by weak competitiveness of Korea's package SW and the politic support of government is fainter than it of other SW kinds. So, this article will grasp the actual state of domestic package SW industry through data and case study, drew the improving problems of the package SW policy, and propose the cultivating policies of the package SW.

• Journal of the Korea Society of Computer and Information
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• v.4 no.1
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• pp.85-91
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• 1999

The first line school system is complexed. In result school affairs is subdividing and complicating more and more. It increased school affairs of teachers and they spend more soluting of their work than studying of teaching materials . The performance evaluation was introduced into the management of school record work as a part of educational reform. This is the evaluation of a studying course and a heavy burden of teachers was aggravated. So they have to depend on computer. In this study. I want to present the efficient method of management of school record work by using Hnagul 97 and Hangul approach 97. That will be able to make out a record easily. It is possible to design a individual pattern and to alter it.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.25 no.6
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• pp.1485-1494
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• 2015

Traditionally, data hiding has been done mainly in such a way that insert the data into the large-capacity multimedia files. However, the document files of the previous versions of Microsoft Office 2003 have been used as cover files as their structure are so similar to a File System that it is easy to hide data in them. If you open a compound-document file which has a secret message hidden in it with MS Office application, it is hard for users who don't know whether a secret message is hidden in the compound-document file to detect the secret message. This paper presents an analysis of Compound-File Binary Format features exploited in order to hide data and algorithms to detect the data hidden with these exploits. Studying methods used to hide data in unused area, unallocated area, reserved area and inserted streams led us to develop an algorithm to aid in the detection and examination of hidden data.