레거시 시스템의 효율적인 클라우드 전환을 위한 마이크로서비스 아키텍처 적용 방안에 관한 연구 = An Efficient Migration Scheme of Legacy Systems for Cloud Through Application of Microservice Architecture : A Case Study

다국어 초록 (Multilingual Abstract)

Various enterprises with existing legacy systems and governments around the world implemented for each microservice after extracting the domain driven concept 's bounded-contextconcept for the correct abstraction of microservices. As a result, the proposed method helps tomigrate large-scale monolithic or SOA-based systems such as public sector systems to the cloud,and is a cornerstone of future research and work on the applicability of the proposed method willbe.
are actively trying to utilize the cloud. In particular, Korea government is pursuing various cloudbusinesses as part of e-government projects. Among them, from 2014 onwards, we have proposeda plan to migrate an on-nara system, which is the Korean government business system, to thecloud. However, the on-nara system is implemented as a Service-oriented architecture(SOA),which makes it difficult to quickly transition to the cloud, and it is difficult to make full use of theadvantages of the cloud even if the transition is made. Therefore, this study suggests the use ofmicroservice architecture to move on cloud computing of on-nara systems. In this study, a certainunit system of the actual on-nara system is selected and microservice architecture is applied. Inthis paper, we propose a cloud task management system based on the microservice architecture

국문 초록 (Abstract)

레거시 시스템을 가진 다양한 기업과 세계의 각 정부가 클라우드를 활용하고자 하는 시도가 활발하게 이루어지고 있다. 특히 한국의 경우, 전자 정부 사업의 일환으로 다양한 클라우드 사업을 계획·추진 중이다. 그중에서도 현재 한국 정부 업무 시스템인 온나라 시스템을 클라우드로 전환하려는 계획이 2014년부터 꾸준히 제안되어왔다. 그러나 온나라 시스템은 서비스 지향 아키텍처로 구현되어 빠르게 클라우드로 전환하기가 힘들고, 전환하더라도 클라우드가 주는 이점을 온전히 활용하기가 어려운 한계가 있다. 따라서 본 연구에서는 온나라 시스템의 클라우드 전환의 한계를 극복하고자 마이크로서비스 아키텍처의 사용을 제안한다. 본 연구에서는 실제 온나라 시스템의 일부 단위 시스템을 선별하여 마이크로서비스 아키텍처를 적용한다. 이때, 마이크로서비스의 올바른 추상화를 위해 도메인주도 설계의 제한 범위 개념을 적용하여 추출한다. 그리고 각각에 마이크로서비스를 적용 및 구현하여 마이크로서비스 아키텍처 기반 클라우드 과제 관리 시스템을 제시한다. 그 결과 본 연구의 제안 방법은 공공 분야의 시스템 등 큰 규모의 모놀리식 혹은 서비스 지향 아키텍처 기반의 시스템을 클라우드로 이전하는 데 도움을 줄 뿐만 아니라, 클라우드 기반의 공공사업 분야에서 본 연구가 제안한 방법의 적용 가능성에 관한 향후 연구 및 작업에 초석이 될 것이다.

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