• The Transactions of the Korea Information Processing Society
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• v.4 no.12
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• pp.3097-3110
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• 1997

As to the recent advances in computer technologies and high-speed networks, telecommunication services and provision of multimedia services will be provided on the basic of a new software architecture adapting networking infrastructure on open information networking architecture. In this paper, the video conference services has been selected as a target service example because it is expected to become one of the most important services on the full service network. In fact, it can be viewed as the basis for providing telecommunication services such as video telephony and video conferencing. This paper presents the prototyping of TINA (Telecommunication Information Networking Architecture) based desktop video conference system using the concepts of session management. The prototyping of desktop video conference system aims at assessing TINA concepts and refinement of the mapping between session graph and connection graph, and provides object modeling methodologies towards distribution and objected-orientation.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.22 no.11
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• pp.2498-2511
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• 1997

Due to the recent advances in computer technologies and high-speed networks, telecommunication services and provision of multimedia services will be considered a new software architecture adapting networking infrastructure on information networking architecture. In this paper, the video conference services has been selected as a target service example because it is expected to become one of the most important services on the full service network. In fact, it can be viewed as the basis for providing telecommunication services such as video telephony and video conferencing. This paepr presents the prototyping of TINA(Telecommunication Information Networking Architecture) based desktop video conference system using the concepts of session management. The prototyping of deskop video conference system aims at assessing TINA concepts and refinement of the mapping between session graph and connection graph, and provides support of open service platform towards distribution and objected-orientation.

• Proceedings of the Korea Society for Simulation Conference
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• 2002.05a
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• pp.61-65
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• 2002

These days, in order to satisfy the complex and various demands of the customers, the telecommunication networks must provide rapid and flexible services, with the support of efficient service and network management systems. To satisfy these requirements, many objects for management have been released to manage network services and elements. But there are no efficient ways to manage these newly managed objects in object-oriented software. Therefore, we study several problems, when a subsystem using object-oriented technique is implemented. The first problem is that interface works between realized application programs using its technique. The second problem is that reusability of internal managed objects is difficult. In this paper, we will point out some problems and to solve these problems, we have proposed the Object Management System (OMS) architecture, which supports a transparent interface between object-oriented applications and the distributed data repositories. Also in order to manage efficient business objects stored in the different repositories, we suggest a method for integrating dynamic information resources in heterogeneous and distributed network environments. Finally, we applied OMS to TINA(Telecommunication Information Network Architecture) domain, implemented OMS, and verified it with SMV(Symbolic Model Verifier) which is model checking technology.

• Journal of Korea Multimedia Society
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• v.5 no.5
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• pp.562-570
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• 2002

In this paper, we design and implement web based Intranet Management Report Publisher (IMRP) that generates automatically daily, weekly, monthly and yearly report for configuration, performance and fault management of the Intranet. Intranet managers can analyze status of the Intranet with IMRP easier The IMRP publishes the Intranet management reports based on TINA (Telecommunication Information Networking Architecture) using CORBA(Common Object Request Broker Architecture). The advantages of this architecture are to protect the Intranet management system by being connected to the User Agent program and to raise the efficiency of maintenance by modifying only the User Agent program as accessing part of the Intranet management system is needed to change.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.21 no.9
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• pp.2385-2401
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• 1996

In this paper, a management model and a path trace algorithm are proposed for the end-to-end path tracing management in ATM network. Proposedmodel is based on the TINA(Telecommunication Information Networking Architecture) and computational object(CO) of ODP(Open Distributed Processing).We related computational object for the path trace to another computational object which covers the ATM routing and established operational procedure according to this relationship. This procedure identifies the end-to-end by way of tracing the ATM connections then collect identification information on the that path. End-to-end trace is performed on the network management level. Broadcasting-with-synchronized-control and GTM(Global Ticket Method) are proposed as path trace algorithm considering the real time properties and data ingetrity. Computer simulations are also performed to evaluate the performance of the proposed algorithm and its resuls are shown in this paper.

• The Transactions of the Korea Information Processing Society
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• v.6 no.5
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• pp.1241-1252
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• 1999

It is proposed in TINA, the open information telecommunication network architecture, that the definition of object group which is collection of objects provides a decrease of complex networking and a facility of object managing by service executing of application on distributed computing environment. Based on a new distributed object group model[13] we have been researched according to TINA specification, this paper proposed the object group model with the scheduler object and objects management mechanisms that can support real-time services on CORBA. To do this, we described the definition of object grouping and the requirements to suggest the object group model supporting real-time service, designed the object group structure and functional components containing in an object group using James Rumbaugh's modelling[12], and showed a class diagram of components in an object group. This paper designed IDLs of an object group manager and scheduler among the components, and finally showed the procedures of management and service interconnections between objects in the different object groups vi ETD.

• Bulletin of the Korean Mathematical Society
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• v.54 no.5
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• pp.1803-1825
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• 2017

Let X be a smooth scheme with an action of an algebraic group G. We establish an equivalence of two categories related to the corresponding moment map ${\mu}:T^{\ast}X{\rightarrow}g^{\ast}$ - the derived category of G-equivariant coherent sheaves on the derived fiber ${\mu}^{-1}(0)$ and the derived category of G-equivariant matrix factorizations on $T^{\ast}X{\times}g$ with potential given by ${\mu}$.

• Journal of KIISE:Computer Systems and Theory
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• v.26 no.9
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• pp.1126-1134
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• 1999

최근 다양한 멀티미디어 서비스를 지원하기 위한 통신망 관리와 서비스 관리가 통합된 개방형 정보 통신망의 구조가 요구되고 있다. 이러한 구조를 기반으로, TINA-C(Tele-communications Information Networking Architecture-Consortium)에서는 분산 환경에서 분산 어플리케이션 객체들에 대한 복잡한 서비스 및 관리 인터페이스들을 간결하도록 객체그룹의 개념을 정의하고 있다. 이러한 환경 속에서 트레이딩 서비스는 통신 서비스를 제공하는 객체그룹간의 상호작용을 지원하는데 매우 중요하다.따라서, 본 논문에서는 객체그룹간의 상호접속을 지원할 수 있는 트레이딩 기능과 이들 트레이더들간의 연동을 위한 트레이더 연합 모델을 제시하고자 한다. 이를 위해 우리는 트레이더의 중개자로서 Cooperator를 설계하여 기존의 트레이더와 연동시켰다. 이러한 결과로서 우리의 새로운 트레이더 연합 모델에서 Cooperator는 객체그룹간의 상호접속에서 객체들의 접속 권한의 체크 기능과 기존의 트레이더 연합모델의 문제점인 트레이더들간의 단 방향 연결문제를 보완하여 양방향 연결 기능을 갖도록 하였다. 끝으로, 이러한 해결 과정을 보이기 위해 트레이더와 Cooperator들로 이루어진 본 연합모델에서 분산 객체그룹간의 상호접속 절차과정과 사건 추적 다이어그램을 보였다.Abstract Recently, the open networking architecture is required to support various multimedia services as integrated functions of network management and service management. Based on this architecture, TINA-C defines an object group concept for simplifying complex management and service interfaces, when distributed application is executed in distributed environments. Within the support environment the trading service is an important of the interacting object groups which provide a telecommunication service.Hence, we suggest the trader federation model for supporting interconnections between object groups and among existing traders by using the cooperator we designed, as an intermediator among traders. Our cooperator has functions for checking access rights of objects in object groups, and for providing bidirectional linkage among traders. Up to now, the existing trader federation models have a single directional linkage for interactions among traders. Finally, we showed the interface procedure and the event trace diagram of distributed object groups using our model consisted of traders and the cooperators.

• The Transactions of the Korea Information Processing Society
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• v.6 no.1
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• pp.234-246
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• 1999

As an application software in distributed computing environment becomes large, the number of objects to be created increases drastically and the interfaces among them become very complex, The concept of group object resolves this problem to some extent by grouping a set of related objects, encapsulating them and controlling their interfaces systematically. In this paper, we propose an implementation model f the group object concept in CORBA, which is a standard middle ware for developing distributed application software on heterogeneous networks. To support group objects we extends CORBA ORB without modifying its internal structure for the compatibility with existing CORBA applications. And we devise an interface definition language by extending CORBA IDL to describe group objects in a language-independent style, which is one of the most important characteristics in CORBA. Finally, we experiment the implementation model on a CORBA ORB compliant product which supports the Java language.

• Proceedings of the Korean Information Science Society Conference
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• 2002.04a
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• pp.358-360
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• 2002

분산 TMO(Time-triggered Message-triggered Object) 객체그룹은 분산 환경에서 실시간 특성을 지원하는 TMO 객체를 그룹으로 하여 TMO 객체에 대한 보안 관리 및 최적 레퍼런스 선택을 위한 부하고려 바인딩 방안과 여러 클라이언트의 요청 작업에 대한 수행 우선순위 스케줄링 방안을 제공하는 모델이다. TINA(Telecommunications Information Networking Architecture)의 객체그룹 개념을 기반으로 실시간 특성을 자체적으로 가지는 TMO 객체를 그룹으로 하여 특정 ORB나 운영체제에 국한되지 않고 COTS(Commercial Off-The-Shelf) 상에서 보장된 실시간 서비스를 제공한다. 이를 위해 분산 TMO 객체 그룹의 구조를 정의하고, TMO 객체의 관리 서비스와 실시간 서비스 관점에서 객체의 기능과 상호작용을 설명한다. 마지막으로, TMO 객체 관리서비스 관점에서 비중복 TMO 객체와 중복 TMO 객체의 레퍼런스 선택과정을 보이며, 부하정보를 고려한 중복 TMO 객체의 최적 레퍼런스 선택의 수행결과를 보이고 검증한다.