• Journal of Korea Spatial Information System Society
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• v.2 no.1 s.3
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• pp.5-16
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• 2000

OGC(Open GIS Consortium) suggests the 'OpenGIS Simple Feature Specification for CORBA' which is the OpenGIS implementation specification for CORBA to specify standard interfaces for reuse and interoperation among distributed heterogeneous GIS resources in the CORBA distributed computing environment. An OpenGIS server that supports this implementation specification moat correctly implement all interfaces defined in the OpenGIS implementation specification to be interoperable with wrapped GISs efficiently. In this paper, we have designed and implemented an OpenGIS server based an object relational GIS, called GEUS that integrates GIS and database technologies to provide spatial data types and spatial operators from the DBMS engine level. In the CORBA distributed computing environment, clients can access geospatial data stored in GIS wrapped by the OpenGIS server through the standard interfaces defined in the OpenGIS implementation specification for CORBA. In addition, clients can use geospatial operation features provided by a back-end GIS and interoperate with other GISs.

• The Transactions of the Korea Information Processing Society
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• v.7 no.5
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• pp.1388-1400
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• 2000

An important technical issue in recent software development is to make needed software by the composition of components that are assemblable, and configurable, and independently extracted. The main advantage of component-based software development is reducing development time and cost. It is more cost-effective in development time to use components that are already developed than developing from scratch. There are two ways of component-based software development: one is to compose self-developed components, and the other is to by the components developed by third-parties and compose them. In the second case, existing non component programs must can be used for reuse in the component development. In this paper, we approach two methods for increase of reusability of Java program. First, we suggest the technique of extracting the elements suitable for the Beans component model from Java program, and then we show a process and a guideline of converting the extract elements into the Beans component model. Second, we suggest a technique of automatically extracting component information from the Java Beans component, expressing them in XML, its is possible to reuse the efficient component environment.

• The Transactions of the Korea Information Processing Society
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• v.4 no.2
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• pp.384-394
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• 1997

Research about Reuse is developed in various direstions, but the sucessful exmples; of the rexuavle objects are very rare in praciice because technical environment to support reuse is short.In this paper we describe a sys-tem for analyxing the information about reusability of C++ objects and for storing and managing the extracted information in information DB.In this development system, user can see the specification information of objects and the quality information of the procedual and object oriented atibutes by browsing.And objests that are not on the reuse unformation DB is analyxed and is tested automatically using the information analyzer by user.We implemented this system using C program in X-Window OSFI/Motif 2.1.1.

• The Transactions of the Korea Information Processing Society
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• v.5 no.5
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• pp.1216-1224
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• 1998

In the object oriented methods, most of the objects are independent from the another. However to get their job done from the system's point of view, they must have some kind of connection established among them. This means that the cooperation among the objects through the interaction is just as important as the static side of the objects. Usually, checking for correctness, compatibility and reasoning of the objects is limited due to the fact that the interactions between the objects are expressed in the form of a line or a box. The reuse experts often claim that the design reuse is more important than code reuse, mostly because it can be applied in more contexts and so is more common. The composition of the objects is also considered as a very important definition in the area of framework which is generally known as a technique to support reuse at both the coding and the designing level. Therefore on this thesis, the composition of such objects has been studied to provide a formal means of evaluating the component's compatibility and better possibility for further improvement in the area of framework, by formalizing the component compositions using the LOTOS.

• Journal of KIISE:Software and Applications
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• v.32 no.12
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• pp.1205-1216
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• 2005

Component-based Development (CBD) is gaining popularity as an effective reuse technology. Especially commercial-off-the-shelf (COTS) components are mainly for inter-organizational reuse, rather than intra-organizational reuse. One of the essential tasks in CBD is to reuse the right components that provide the functionality and interface required by component consumers. If candidate components provide a limited applicability and customizability, a component consumer cannot reuse the components in application development. To resolve this partial matching problem, we need smart connectors that fill the gap between candidate components and the specification of components required. Previous researches about smart connector describe only connector types to resolve mismatch problems. However, previous researches do not address the identification and design method to resolve the problems. In this paper, we suggest taxonomy of various mismatch problems to identify partial match problems between requirements of the application and components. We identify smart connector types and suggest a systematic process for designing smart connectors using the taxonomy. Therefore, components that have the problems can be used to develop applications.

• Journal of the Korea Society for Simulation
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• v.14 no.2
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• pp.15-24
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• 2005

The goal of a distributed simulation such as battle field simulation is to combine all kinds of simulations in the same synthetic environment and to make people interact at the same time. It is a key issue to share the same synthetic environment among simulations. To support reusability and affordability in the modeling and simulation area, DMSO(Defense Modeling and Simulation Office) of USA developed concepts such as HLA(High Level Architecture) and SEDRIS (Synthetic Environmental Data Representation and Interchange Specification). In the industrial simulation area, the digital manufacturing is the main stream. To reduce cost and to reuse simulation environment, the standardization becomes the focus of digital manufacturing. This study proposes to use SEDRIS to improve interoperability of manufacturing data. The simulation data of DELMIA, which is a leading commercial digital manufacturing solution, is mapped and translated into the SEDRIS transmittal format. Mapping of the manufacturing simulation data and the synthetic environment are implemented and verified through experiments.

• The Journal of Society for e-Business Studies
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• v.12 no.2
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• pp.195-217
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• 2007

B2B registries provide spaces to register and retrieve information which is necessary to support B2B transactions among business partners or potential business partners. Business process specifications are one of important contents in B2B registries, and there is high complexity of representation due to complex and dynamic characteristics of business processes. Also, currently there exist several competing specification frameworks such as ebXML BPSS, WSBPEL, BPMN, and so on. This paper proposes a metadata schema to register business process specifications which are represented by different specification frameworks. The proposed schema has extensibility to register business process specifications which are represented by various different specification frameworks. Also, it extends reuse level from whole business specification processes to their components. To show the usefulness of the proposed schema, this paper demonstrates metadata extraction from business process specifications which are represented by two representative XML-based business process specification languages, ebXML BPSS and WSBPEL.

• Journal of KIISE:Software and Applications
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• v.27 no.2
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• pp.180-192
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• 2000

Recently, the component technology has played a main role in software reuse. It has changed the code-based reuse into the binary code-based reuse, because components can be easily combined into the developing software only through component interfaces. Since components and component users have increased rapidly, it is necessary that the users of components search for the most proper components for HTML among the enormous number of components on the Internet. It is desirable to use web-document-typed specifications for component specifications on the Internet. This paper proposes to use XML component specifications instead of HTML specifications, because it is impossible to represent the semantics of contexts using HTML. We also propose the XML context-search method based on XML component specifications. Component users use the contexts for the component properties and the terms for the values of component properties in their queries for searching components. The index structure for the context-based search method is the inverted file indexing structure of term-context-component specification. Not only an XML context-based search method but also a variety of search methods based on context-based search, such as keyword, search, faceted search, and browsing search method, are provided for the convenience of users. We use the 3-layer architecture, with an interface layer, a query expansion layer, and an XML search engine layer, of the search engine for the efficient index scheme. In this paper, an XML DTD(Document Type Definition) for component specification is defined and the experimental results of comparing search performance of XML with HTML are discussed.

• Journal of Korea Multimedia Society
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• v.7 no.1
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• pp.113-125
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• 2004

Active networks aim to provide a software framework that enables active network applications to customize the processing their communications. Active security component architecture focuses on the support of reuse system by active security component. The architecture is standard layer to acquire, understand, and assemble component, and it has to support a guideline for component identification, search and customization. In this paper we present the active security architecture as a standard model of discrete active network solution, and we propose the method for component classification and specification.

• Journal of Digital Contents Society
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• v.11 no.1
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• pp.25-38
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• 2010

There is no guideline or standard for the specification of the open-source-framework-based Spring AOP, and it causes confusion in development and maintenance. Moreover, the inconsistency between the existing MVC model, the AOP model that is used for Struts framework and the UML diagram makes the aspect reuse more difficult. In this study, a widened existing method was proposed so that Aspect, Pointcut and Advice could be expressed by either UML or XML to ensure that the Spring AOP can accept the combined use of the existing MVC model and the AOP model, which is used for Struts framework. Relationship was defined so that the mutual conversion could be possible with the proposed expression method, and the realization of simple development and maintenance was verified via the examples of mutual conversion. In addition, a packaging method to efficiently reuse aspect was proposed, and the possibility of reuse was verified.