• Journal of Korea Game Society
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• v.11 no.2
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• pp.131-140
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• 2011

Debugging is very important element in programming development. We can find a lot of bug of program we made, and we can fix it. but after a product is released, we need system we can catch bugs as soon as possible. For this, we need to know post-mortem debugging. We will look at post-mortem debugging, and we will talk about process dump. Also when process get the problem, we should get the process dump, but we can have situation process dump was not generated. We will consider this case, and we will examine programming technique which this case can be retrieved. Finally, I will introduce EHModule(exception handler module)

• Journal of Information Technology Services
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• v.10 no.2
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• pp.223-234
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• 2011

Loosely coupled properties of SOA(Service Oriented Architecture) services do not guarantee that service applications always work properly. Service errors may also influence other services of SOA. These characteristics adversely affect software reliability. Therefore, it is a challenge to effectively manage system change and errors for operating services normally. In this study, we propose a SOA based framework using AOP(Aspect Oriented Programming) for reliable service applications. AOP provides a way to manipulate cross-cutting concerns such as logging, security and reliability and these concerns can be added to applications through weaving process. We define a service specification and an aspect specification for this framework. This framework also includes service provider, requester, repository, platform, manager, and aspect weaver to handle changes and exceptions of applications. Independent Exception Handler is stored to exhibited external Aspect Service Repository. When exception happened, Exception Handler is linked dynamically according to aspect rule that is defined in aspect specification and offer function that handle exception alternate suitable service in systematic error situation. By separating cross-cutting concerns independently, we expect that developer can concentrate on core service implementation and reusability, understanding, maintainability increase. Finally, we have implemented a prototype system to demonstrate the feasibility of our framework in case study.

• Proceedings of the IEEK Conference
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• 2003.07d
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• pp.1383-1386
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• 2003

In this paper, an ALU for Simultaneous Multi-Threading (SMT) microprocessors is designed. The SMT architecture improves notably performance and utilization of processes compared with conventional superscalar architectures by executing instructions from multiple threads at the same time. This ALU adopts data bypassing method to process multi-threads. And it can flush instructions in the same thread that generate exceptions such as branch misprediction. interrupt etc, performance of SMT microprocessors with data bypassing and exception handler can be improved.

• The Transactions of the Korea Information Processing Society
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• v.5 no.9
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• pp.2271-2280
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• 1998

In this paper, we propose a method to retneve english written korcan names efficientl, and design a multilingual name retrieval system, It is very difficult to retrieve english-written korean names in typical IR sytems. For example, "홍길동" is written in english as vanous forms such like "Hong, gildong", "Gildong Hong", "Hong kil dong", "Hong kil dong" and so on, We not only propose a rule-based querv expansion method to retrieve english-written korean names efficiently but also design a multiligual name retneval system which is consisted of query classifier, exception handler, query expander, query executor, exception list and rulebase, Finally we will try to show that english-written korean names could be efficiently retrieved with rule based name generator.

• Journal of The Korean Association of Information Education
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• v.4 no.1
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• pp.109-119
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• 2000

In this paper, we design and implement educational system by using active database technique in www environments. The developed system consists of three modules such as user group interface, active-based monitor, and expert group interface. The roles of each module are summarized as follows. The user group interface provides with system accessibility the users who registered in the developed system. The active-based monitor, triggering modules, consists of three sub-modules such as keyword parser, exception handler, and DB access module. Also it manages five items such as keyword index, Q&A DB, user group mailing list, and expert group mailing list. The expect group interface provides answer filling form for the expert who registered in the developed system.