• Annual Conference of KIPS
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• 2018.05a
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• pp.608-610
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• 2018

The future of Internet of Things ecosystem seems to be worth it, however by using a monolithic approach we might end up by dealing with complexity of the system as long as the statistics show that by 2020 IoT devices will reach around 50 billion. The microservice architecture approach utilizes the service-oriented architecture together with best practices and latest developments in software virtualization to overcome complexity issues, allow reusability of services or microservices instead of creating new ones. The microservice architecture provides secure platforms if it is developed and deployed in a container. Thus, this paper surveys on the microservices, microservices architecture and containers, microservices based Internet of Things.

• KIPS Transactions on Software and Data Engineering
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• v.8 no.3
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• pp.97-108
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• 2019

As digital content items increase, new content services are often added to or integrated among existing content management systems to manage them. For efficient system integration, this paper designed a content management system that combines two existing content management systems based on a microservices architecture. In addition, during the development process, integrated system that existing systems were recycled without disruption to existing systems, integrated efficiently and implemented as scalable systems. It measured the resource usage of this systems and analyzed the differences between features for system integration using traditional middleware.

• Journal of Software Assessment and Valuation
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• v.17 no.1
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• pp.51-58
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• 2021

Microservices are not only developed independently, but can also be run and deployed independently, ensuring more flexible scaling and efficient collaboration in a cloud computing environment. This impact has led to a surge in migrating to microservices-oriented application environments in recent years. In order to introduce microservices, the problem of identifying microservice units in a single application built with a single architecture must first be solved. In this paper, we propose an algorithm-based approach to identify microservices from legacy systems. A graph is generated using the meta-information of the legacy code, and a microservice candidate is extracted by applying a clustering algorithm. Modularization quality is evaluated using metrics for the extracted microservice candidates. In addition, in order to validate the proposed method, candidate services are derived using codes of open software that are widely used for benchmarking, and the level of modularity is evaluated using metrics. It can be identified as a smaller unit of microservice, and as a result, the module quality has improved.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.21 no.2
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• pp.7-14
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• 2021

By changing the bulky monolithic services architecture to a microservices-based architecture, industries are managing the rising complexity of Autonomous Vehicles. However, the underlying communication mechanisms for the utilization and distribution of these microservices are incapable of fulfilling the requirements of the futuristic AV, because of the stringent latency requirements along with intermittent and short-lived connectivity issues. This paper proposes to tackle these challenges by employing the revolutionary information-centric networking (ICN) paradigm as an underlying communication architecture. This paper argues that a microservice approach to building autonomous vehicle systems should utilize ICN to achieve effective service utilization, efficient distribution, and uniform service discovery. This research claims that the vision of an information-centric microservices will help to focus on research that can fill in current communication gaps preventing more effective, and lightweight autonomous vehicle services and communication protocols.

• Annual Conference of KIPS
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• 2023.11a
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• pp.500-503
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• 2023

스마트팜 혁신밸리는 스마트팜에 특화된 스마트팜 기자재 연구·실증 기능의 집약을 위해 추진되었다. 하지만 기존의 스마트팜 실증단지 구축 시스템은 모놀리식 접근 방식을 사용해서 시스템 내 다양한 기능의 업데이트와 유지보수를 하는데 많은 시간과 인력을 필요로 한다. 이에 본 논문은 차후 스마트팜의 실증단지 운영시스템 구축에 마이크로 서비스 아키텍처를 활용한 '마이크로 서비스' 시스템을 제시하는 것을 목적으로 한다. 이를 통해 스마트팜 기능의 통합을 개선하고 대규모배포를 위한 성능을 향상시킬 수 있다. 이를 위해 MSA 설계 전략에 대한 제언을 한다. 향후 실제 실증단지 운영시스템 구축에 본 제안의 유용성을 확인하는 작업이 필요하다.

• The Korean Journal of Archival Studies
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• no.60
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• pp.283-315
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• 2019

The emergence of new business models software industry is demanding a change to technology that can cope quickly and flexibly. In this regard, microservices, which is being addressed as the architecture of the next-generation record management system, has emerged as an agile and convenient architecture. If record-management system with micro-service is developed, agility and expandability with basement of innovation can be ensured. The purpose of study is to suggest efficient ways when record-management system with micro-service is built. For this, tranditional architecture has been checked and main features of micro-service have been explained. Also, it was summarized that three points : 'Short history of micro-service', 'Maturity of technology' and 'Techical level of project team' have to be reviewed when record-management system with micro-service architecture is built. And we suggested some issues to consider when constructing the records management system applying microservices according to the domestic environment.

• Journal of Information Technology Services
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• v.23 no.1
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• pp.37-53
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• 2024

Recently, the application of microservice architecture has been increasing as information systems have shifted to cloud environments. The purpose of this paper was to analyze the case of applying microservice architecture to MES in the manufacturing field, summarize the results of how it was applied in practice, and find out the effects of the application. Based on the improvement project by applying microservice architecture to the existing steel manufacturing MES, 11 principles of microservice application were derived through literature research, and the implementation process and results were summarized according to these principles. In addition, through a comparison of systems in the service industry and the manufacturing industry, we investigated why the application of microservices was more active in the service industry and whether the application in the manufacturing industry can be expected to have the same effect. We also evaluated the results and changes in the overall system after implementation. In particular, we analyzed the SR (Service Request) processing status of users' requests for system changes and operators' requests to see how much the lead time was reduced. The results showed that 8 out of 11 microservice application principles were properly implemented according to the principles, but the remaining 3 were not applicable due to practical difficulties and organizational circumstances. Despite not following all of the principles, the project was able to be implemented without any problems, and the most noticeable change as a result of the microservices architecture was that the lead time was reduced by 9 days compared to the previous system. This proves that it is possible to quickly adapt to customer requirements, and it also proves that the system is more flexible and scalable than the existing monolithic system.

• Journal of Information Technology Services
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• v.23 no.5
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• pp.73-85
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• 2024

This study employs the Analytic Hierarchy Process (AHP) to evaluate the suitability of microservice architecture in Manufacturing Execution Systems (MES) for the steel manufacturing industry, based on software quality attributes. The research involved 36 experts (13 from architecture teams and 23 from business development teams) who assessed the importance of six main quality attributes (reliability, performance, usability, maintainability, flexibility, and security) along with their sub-attributes, and compared the suitability of microservice and monolithic architectures. The results indicate that microservice architecture demonstrated higher overall suitability with a composite score of 0.565, compared to monolithic architecture (0.435). Among the quality attributes, reliability was rated as the most important factor, while flexibility and maintainability were less important, as expected. Perception differences between teams were observed regarding performance attributes, while monolithic architecture was marginally favored in terms of security. This study emphasizes the importance of a contextual approach in software architecture selection, taking into account industry characteristics and system requirements. It contributes both academically and practically through methodological innovation using AHP, bridging theory and practice, and integrating diverse stakeholder perspectives. The findings provide practical guidelines for considering microservice architecture adoption in steel manufacturing MES and similar industries, while also stressing the need for a cautious approach.

• Smart Media Journal
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• v.12 no.9
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• pp.60-71
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• 2023

A microservice architecture that accommodates the heterogeneity of various development environments and enables flexible maintenance can secure business agility to manage services in line with rapidly changing requirements. Due to the nature of MSA, where communication between microservices within a service is frequent, the boundary security that has been used in the past is not sufficient in terms of security, and a Zerotrust system is required. In addition, as the size of microservices increases, definition of access control policies according to the API format of each service is required, and difficulties in policy management increase, such as unnecessary governance overhead in the process of redistributing services. In this paper, we propose a microservice architecture that centrally manages policies by separating access control decision and enforcement with a general-purpose policy engine called OPA (Open Policy Agent) for collective and flexible policy management in Zerotrust security-applied environments.

• Journal of Internet of Things and Convergence
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• v.9 no.3
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• pp.21-26
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• 2023

The development and distribution approach of applications is transitioning from a monolithic architecture to microservices and containerization, a lightweight virtualization technology, is becoming a core IT technology. However, unlike traditional virtual machines based on hypervisors, container technology does not provide concrete security boundaries as it shares the same kernel. According to various preceding studies, there are many security vulnerabilities in most container images that are currently shared. Accordingly, attackers may attempt exploitation by using security vulnerabilities, which may seriously affect the system environment. Therefore, in this study, we propose an efficient automated deployment pipeline design to prevent the distribution of container images with security vulnerabilities, aiming to provide a secure container environment. Through this approach, we can ensure a safe container environment.