• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.18 no.10
• /
• pp.2473-2481
• /
• 2014

The majority of next generation information systems will be working on portable mobile devices such as smartphones. REST Open API web services have quickly become popular among mobile application development. The use of REST web services are not only growing in popularity but totally changing the way of mobile applications development. This is because REST web services could be used in application development as a form of building blocks, which is completely independent, compatible, to any platforms. With this strength, REST web services encourage third party application to build add-on functionality. This research proposes the use of REST web service to replace the use of socket APIs into major internet communication APIs. To this end, this paper also provide performance evaluation of the REST web services compared to the conventional socket APIs, focusing on scalability by analytical and experimental evaluations. Finally, we summarize the possibility whether REST Open API web services have enough performance as future major internet communication primitive APIs.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2012.11a
• /
• pp.424-426
• /
• 2012

REST 웹 서비스는 HTTP 프로토콜을 통해 손쉽게 적용 및 배포할 수 있다. 최근 다양한 정보시스템의 데이터베이스가 REST Open API 웹서비스를 통하여 배포되고 있으며, 이는 스마트폰 애플리케이션, 웹(Web) 등의 다양한 분야에서 활용되고 있다. 본 연구는 오픈 API 에 대한 시스템의 성능의 포인트에 서비스 평가를 제공하는 것이다. 본 연구는 REST 오픈 API 의 수행 성능 평가를 통하여 REST 오픈 API 웹 서비스의 확장성에 초점을 둔다. 이를 위해 REST 오픈 API 가 미래에 모바일 클라우드 플랫폼으로써 충분한 성능 및 활용될 수 있는지 검증할 필요가 있다. 본 논문은 큐잉 네트워크(Queueing Network)을 활용하여 REST Open API 웹서비스 서버 시스템을 모델링하고 성능을 분석하였다.

• Proceedings of the Korean Information Science Society Conference
• /
• 2012.06d
• /
• pp.97-99
• /
• 2012

최근 스마트폰, 스마트 태블릿 등의 모바일 단말이 급속도로 보급됨에 따라 모바일-클라우드 컴퓨팅 환경이 대중화 되는 추세다. 이에 따라, REST 웹 서비스 Open API의 활용 역시 점차 확대되는 추세이다. REST 웹서비스 Open API는 서버에서 제공하는 기능을 스마트폰 애플리케이션에 추가함으로써 기능을 확장하기 위해 사용하는 경우가 대부분이다. 그러나, 본 논문에서는 웹 서비스 Open API의 사용목적을 일반적인 모바일-클라우드(스마트폰-서버, 클라이언트-서버) 환경으로 확대하는 방법을 제안한다. 본 논문에서는 파이(pi)값 계산을 병렬적으로 처리하는 알고리즘을 활용하여 다수의 클라우드 컴퓨팅 노드에서 병렬수행을 테스트한다. 이 때, 소켓을 이용한 통신방법과 REST 웹서비스 Open API에 의한 통신방법을 적용한 경우의 성능을 비교한다. 결과적으로 REST 웹서비스 기반의 Open API 방식을 적용하는 것이 여러측면에서 유리함을 성능분석을 통해 보인다.

• 한국정보통신설비학회:학술대회논문집
• /
• 2008.08a
• /
• pp.521-524
• /
• 2008

기존 지능망 서비스들이 포화 상태에 이르게 됨에 따라 수익이 나는 새로운 서비스를 개발하는 것이 점점 더 어려워지고 있다. 요즈음 전통적인 전화망과 인터넷의 결합이 새로운 경향으로 나타나고 있다. PC와 같은 인터넷 단말은 전화망의 전통적인 단말보다 저장 장치 및 유저 인터페이스 면에서 더욱 더 강력한 능력을 가지고 있다. IT 개발자들은 전화 분야의 전문 지식을 갖고 있지 않아도 Parlay API를 사용하면 새로운 통신 서비스를 쉽게 만들수 있다. HTTP 상의 SOAP을 사용하여 쉽게 두 컴퓨터 노드간의 통신이 가능하게 할 수 있더라도 일반적인 개발자는 현란한 XML 포맷 때문에 SOAP 메시지를 처리하는데 어려움을 느낀다. REST 기반 API는 이러한 것의 좋은 대체재가 될 수 있는데, 추가적인 프로토콜 층이 없이 HTTP 층만 있기 때문이다. 본 논문에서는 통화 및 메시징 서비스를 만들기 위한 REST 기반의 Open APl 를 소개한다. 제안되는 API는 클릭투콜, 미니 컨퍼런스, 통화 녹음, 주문형 오디오 재생, 단문 메시징 및 음성 메시징 기능을 제공한다. 제안되는 API 특징은 전화망과 인터넷의 컨버전스의 강력함을 보여준다.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2023.01a
• /
• pp.257-260
• /
• 2023

본 논문에서는 Vue.js와 Spring Boot 프레임워크를 사용하여 사용자 편의성을 제공하기 위해 Gird System, Data Table, Chart 등의 기능을 활용하여 축구 데이터를 표현한 웹 응용서비스를 개발하였다. Rapid API의 Open REST API 중 하나인 API-FOOTBALL에 액세스하여 국내에서 쉽게 찾아보기 어려운 세계 축구 리그의 순위표, 일정, 팀 및 선수의 세부 정보 데이터를 활용하였다.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.39C no.8
• /
• pp.626-636
• /
• 2014

Existing mash-up services could not be offered in accordance with the purposes and preferences of all users because they are created by the service developers. Therefore some precedent studies, which enable for individual users to create their own mash-up services automatically, have been conducted. In order to create automatic mash-up services, it is important to find elements to distinguish the possibility of mash-up. The precedent studies determine the possibility of mash-up through comparison of the similarity between input/output parameter names in the REST-based Open API. Only using the similarity to distinguish the possibility of mash-up, however, some unintended mash-up results can be occurred because the property of input/output parameters are not considered. In this paper, we propose the method considering the properties of input/output parameters to decrease the unintended mash-up results and extend ontology proposed in precedent studies by applying this property. And we propose the algorithm to distinguish the possibility of mash-up using the expanded ontology and describe the result of automatic mash-up services.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.38C no.7
• /
• pp.587-594
• /
• 2013

With the development of web 2.0 and the rapid diffusion of smart devices, current web service, which only provides very limited information and service, has been transformed into user-friendly and comprehensive web service called mash-up service. Mash-up service is defined as comprehensive service that is created by combining variety of web services. When composing a mesh-up service, Open API is used as web service interface. Current mash-up service, however, has fundamental problem in that it could not satisfy the various needs of users who want I-centric personalized service because it is developed and provided by service developers. To overcome these obstacles, a lot of studies on mesh-up framework are being performed for improving mash-up proess though, it is still in beginning stage. In this paper, we introduce an API selection and compostion method as the key technology for mesh-up framework that support the automatic creation of mesh-up service.

• Journal of Korean Library and Information Science Society
• /
• v.38 no.3
• /
• pp.297-320
• /
• 2007

This study examined the main concepts of SOA and Web Services, and conducted technical analysis of major Web Services protocols such as SOAP, REST, SRW/U, and OAI-PMH that realize SOA, and suggested examples of SOAP and REST based Web Services establishments in foreign and domestic libraries respectively. In addition, it introduced application examples of Library 2.0 using Web 2.0 technology in foreign and domestic libraries and suggested how to apply SOA based Web Services protocol in Library 2.0. Finally, it proposed how to put Library 2.0 into practice applying meta-searching system integrating library OPAC, online bookstores, web portal sites and library union catalogs using REST based Open API.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.20 no.8
• /
• pp.1478-1486
• /
• 2016

This paper introduces technical methods to improve the accessibility and usability of a WebRTC video conference (VC) application. Simplified login is essential, by applying such as single sign-on (SSO) to improve the accessibility of VC applications. High usability and manageability are also necessary to attract more users, enhance user experiences, and save service management cost. The proposed VC application leverages SAML-based federated identity management (FIM) to enable higher service accessibility. Users can access the application with their organizational ID and SSO authentication. The FIM eases user ID management and indirectly strengthens privacy information protection. Proposed web application has high usability and manageability because users and/or administrators can easily create, join, monitor, or tear down VC sessions through RESTful web service (REST API). We verify the feasibility of the VC application after illustrating the SAML-based identity federation and the designed REST API.

• Journal of Korea Society of Digital Industry and Information Management
• /
• v.7 no.3
• /
• pp.11-23
• /
• 2011

Recently, Open APIs are getting attention with the advent of Web 2.0. Open APIs are used to combine services and generate new services by Mashup. However, the growing number of available Open APIs raises a challenging issue how to locate the desired APIs. We automatically build ontologies from WSDL, WADL, HTML, and their underlying semantics. The key ingredient of our method is a technique that clusters input/output parameters in the collection of API methods into semantically meaningful concepts, and captures the hierarchical relationships between the terms contained in a parameter. These semantic ontologies allow search engines to support a similarity search for Open APIs based on various protocols such as SOAP, REST, JavaScript, and XML-RPC, and significantly improve the quality of APIs matching by the clustering and hierarchical relationships mechanism.