A clearly-defined and well-structured methodology can reduce ontology development time and increase the possibility of the project success. However, there exists no mature knowledge engineering methodology for ontology developments. Nevertheless, METHONTOL-OGY, known as one of the best methodologies, has been adopted in several ontology developments due to its domain-independent characteristics. In this paper, we develop the Graduation Screen Ontology (GSO) based on the guidelines suggested by METHONTOL-OGY to analyze the ontology development life cycle suggested in METHONTOLOGY and to identify the issues related to the METHONTOLOGY approach, OWL-DL, and Protégé-OWL. Based on our GSO development experience, we found several drawbacks of the METHONTOLOGY approach. We also address some issues related with Protégé-OWL and OWL-DL.We finally discuss contributions and practical implications of this study.Fourth International Conference on Networked Computing and Advanced Information Management 978-0-7695-3322-3/08 $25.00
To assist developing robust multithreaded software, we develop a thread monitoring system for multithreaded Java programs, which can trace or monitor running threads and synchronization. We design a monitoring system which has options to select interesting threads and synchronized actions. Using this tool, programmers can monitor only interesting threads and synchronization in more details by selecting options, and can detect a deadlock. It also provides profile information after execution, which summarizes behavior of running threads and synchronized actions during execution. We implement the system based on code inlining, and presents some experimental results.
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