• KIPS Transactions on Software and Data Engineering
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• v.8 no.4
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• pp.137-144
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• 2019

Testing maturity is critical to the system under development with lack of experience and skills in the acquisition of the weapon systems. Defects have a huge impact on important system operations. Sharing real-time information will lead to rapid command and mission capability in submarine. DDS(Data Distribution System) is a very important information sharing system and interface between various manufacturers or data formats. In this paper, we analyze data distribution characteristics of distributed data system to group data-specific systems and proposes a test case-generation method using path search of postorder and preorder which is a tree traversal in path testing method. The proposed method reduces 73.7.% testing resource compare to existing methods.

• Journal of Internet Computing and Services
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• v.7 no.4
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• pp.23-32
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• 2006

In this paper, we propose indexing method to manage large amount of XML documents efficiently, using the range of node and Pre-Oder List. The most of XML indexing methods are based on path or numbering method. However, the method of path-based indexing method shows disadvantages of performance degradation for join operations of ancestor-descendent relationships, and searching for middle and lower nodes. The method of numbers-scheme based indexing has to number all nodes of XML documents, since search overhead increased and the disk space for indexes was wasted. Therefore, in this paper, we propose a novel indexing method using node ranges and Preorder-Lists to overcome these problems. The proposed method more efficiently stores similar structured XML documents. In addition, our method supports flexible insertion and deletion of XML documents.