• Title/Summary/Keyword: open platform service

Search Result 351, Processing Time 0.03 seconds

Implementation of Virtual Machine Allocation Scheme and Lease Service in Cloud Computing Environments (클라우드 컴퓨팅 환경에서 가상머신 할당기법 및 임대 서비스 구현)

  • Hwang, In-Chan;Lee, Bong-Hwan
    • Journal of the Korea Institute of Information and Communication Engineering
    • /
    • v.14 no.5
    • /
    • pp.1146-1154
    • /
    • 2010
  • A virtual machine lease service in the cloud computing environment has been implemented using the open source cloud computing platform, OpenNebula. In addition, a web-based cloud user interface is developed for both convenient resource management and efficient service access. The present virtual machine allocation scheme adopted in OpenNebula has performance reduction problem because of not considering CPU allocation scheduler of the virtualization software. In order to address this problem we have considered both the priority of the idle CPU resources of the cluster and credit scheduler of Xen, which resulted in performance improvement of the OpenNebula virtual machine scheduler. The experimental results showed that the proposed allocation scheme provided more virtual machine creations and more CPU resource allocations for cloud service.

Design Methodology of Integrated Architecture for S&T Knowledge Infrastructure (과학기술 지식인프라 통합 아키텍처 설계방법론)

  • Kang, Yun-hee;Kim, Young-chul
    • Journal of Platform Technology
    • /
    • v.6 no.3
    • /
    • pp.31-37
    • /
    • 2018
  • Recently, the platforms for open science are being developed for helping researchers and scientists who are interested in convergence studies. This paper is focused on deriving a design method for an integrated architecture for knowledge infrastructure in science and technology and to set up the integration level of details and association between data and services in the integrated architecture. To facilitate the open science in research lifecycle, reconstructing individual services into modular and independent function blocks needs to be reusable and interoperable. The proposed design methodology is used for manipulating a service integration for the convergence service of S&T(Science and Technology) knowledge infrastructure. It can support to seamlessly access computing resources and the research results including artifacts digitally enabled scholars, researchers, and engineers participating in multidisciplinary collaborations.

The Comparative Research On 2D Web Mapping Open API for Designing Geo-Spatial Open Platform (공간정보 오픈플랫폼 설계를 위한 2D Web Mapping Open API 비교 연구)

  • Choi, Won Geun;Kim, Min Soo;Jang, In Sung;Chang, Yoon-Seop
    • Spatial Information Research
    • /
    • v.22 no.5
    • /
    • pp.87-98
    • /
    • 2014
  • Google Maps have changed the response time of Web-GIS using AJAX technologies. In addition, Google released the Open API named Google Maps API(Application Programming Interface) and it lead to the big paradigm on the Open API, where the SDK(Software Development Kit) and ASP(Application Service Provider) had ruled at the related map market. In short, the Open API has been paradigm-shifting for the web mapping. After this, government, many companies and open source foundations have guided Web-GIS market's growth through releasing the relevant Open APIs. So many comparative analysis on web-mapping API carried out by many researches. However there were no researches that can be applied to our current domestic environments. This paper investigates components of web-mapping API. Then we compare how many components supported and enumerate features for each of those APIs. Finally this paper presents direction of future development of Web Mapping API.

A Novel Framework for Resource Orchestration in OpenStack Cloud Platform

  • Muhammad, Afaq;Song, Wang-Cheol
    • KSII Transactions on Internet and Information Systems (TIIS)
    • /
    • v.12 no.11
    • /
    • pp.5404-5424
    • /
    • 2018
  • This work is mainly focused on two major topics in cloud platforms by using OpenStack as a case study: management and provisioning of resources to meet the requirements of a service demanded by remote end-user and relocation of virtual machines (VMs) requests to offload the encumbered compute nodes. The general framework architecture contains two subsystems: 1) An orchestrator that allows to systematize provisioning and resource management in OpenStack, and 2) A resource utilization based subsystem for vibrant VM relocation in OpenStack. The suggested orchestrator provisions and manages resources by: 1) manipulating application program interfaces (APIs) delivered by the cloud supplier in order to allocate/control/manage storage and compute resources; 2) interrelating with software-defined networking (SDN) controller to acquire the details of the accessible resources, and training the variations/rules to manage the network based on the requirements of cloud service. For resource provisioning, an algorithm is suggested, which provisions resources on the basis of unused resources in a pool of VMs. A sub-system is suggested for VM relocation in a cloud computing platform. The framework decides the proposed overload recognition, VM allocation algorithms for VM relocation in clouds and VM selection.

Development of BLE Sensor Module based on Open Source for IoT Applications (IoT 응용을 위한 오픈 소스 기반의 BLE 센서 모듈 개발)

  • Ryu, Dae-Hyun
    • The Journal of the Korea institute of electronic communication sciences
    • /
    • v.10 no.3
    • /
    • pp.419-424
    • /
    • 2015
  • The era of IoT in which all objects are intelligent and are connected to the Internet has been started. In order to establish and activate an IoT eco system, open services platform is very important. In this paper, we developed a BLE sensor module as a component of the open service platform based on the IoT and the open source hardware Blutooth4.0. To verify the functionality and performance of the developed BLE sensor module was built to evaluate the performance of the test environment.

An Open Source Mobile Cloud Service: Geo-spatial Image Filtering Tools Using R (오픈소스 모바일 클라우드 서비스: R 기반 공간영상정보 필터링 사례)

  • Kang, Sanggoo;Lee, Kiwon
    • Spatial Information Research
    • /
    • v.22 no.5
    • /
    • pp.1-8
    • /
    • 2014
  • Globally, mobile, cloud computing or big data are the recent marketable key terms. These trend technologies or paradigm in the ICT (Information Communication Technology) fields exert large influence on the most application fields including geo-spatial applications. Among them, cloud computing, though the early stage in Korea now, plays a important role as a platform for other trend technologies uses. Especially, mobile cloud, an integrated platform with mobile device and cloud computing can be considered as a good solution to overcome well known limitations of mobile applications and to provide more information processing functionalities to mobile users. This work is a case study to design and implement the mobile application system for geo-spatial image filtering processing operated on mobile cloud platform built using OpenStack and various open sources. Filtering processing is carried out using R environment, recently being recognized as one of big data analysis technologies. This approach is expected to be an element linking geo-spatial information for new service model development and the geo-spatial analysis service development using R.

Real-Time Characteristics Analysis and Improvement for OPRoS Component Scheduler on Windows NT Operating System (Windows NT상에서의 OPRoS 컴포넌트 스케줄러의 실시간성 분석 및 개선)

  • Lee, Dong-Su;Ahn, Hee-June
    • Journal of Institute of Control, Robotics and Systems
    • /
    • v.17 no.1
    • /
    • pp.38-46
    • /
    • 2011
  • The OPRoS (Open Platform for Robotic Service) framework provides uniform operating environment for service robots. As an OPRoS-based service robot has to support real-time as well as non-real-time applications, application of Windows NT kernel based operating system can be restrictive. On the other hand, various benefits such as rich library and device support and abundant developer pool can be enjoyed when service robots are built on Windows NT. The paper presents a user-mode component scheduler of OPRoS, which can provide near real-time scheduling service on Windows NT based on the restricted real-time features of Windows NT kernel. The component scheduler thread with the highest real-time priority in Windows NT system acquires CPU control. And then the component scheduler suspends and resumes each periodic component executors based on its priority and precedence dependency so that the component executors are scheduled in the preemptive manner. We show experiment analysis on the performance limitations of the proposed scheduling technique. The analysis and experimental results show that the proposed scheduler guarantees highly reliable timing down to the resolution of 10ms.

The design of Open IoT Platform based on oneM2M Standard Protocol (oneM2M 표준 프로토콜 기반의 개방형 IoT 플랫폼 설계)

  • Myung, Sang-Il;Kim, Sung-Dae
    • Journal of the Korea Institute of Information and Communication Engineering
    • /
    • v.21 no.10
    • /
    • pp.1943-1949
    • /
    • 2017
  • In recent years, the maker culture has realized the concept of 'making' itself through the latest technology of high technology. It is rapidly spreading as a maker's movement by sharing the production methods and information of individuals through the Internet. Countries that are leading the makers' movement expect the maker's movement to be the driving force for new value creation and economic growth from the point of view of things and the Internet. We are developing various types of open IoT platforms that can register various Internet devices and services manufactured and developed through DIY and realize interoperable services. Typical open IoT platforms require specialized API analysis capabilities and difficult access to general users due to difficult platform registration conditions and procedures. In this paper, we try to construct an open IoT platform that can be operated as a real service by creating a simple Internet application device and service application from a general manufacturer's point of view.

Performance Measurement Model for Open Big Data Platform (공공 빅데이터 플랫폼 성과평가 모형)

  • RHEE, Gyuyurb;Park, Sang Cheol;Ryoo, Sung Yul
    • Knowledge Management Research
    • /
    • v.21 no.4
    • /
    • pp.243-263
    • /
    • 2020
  • The purpose of this study is to propose the performance measurement model for open big data platform. In order to develop the performance measurement model, we have integrated big data reference architecture(NIST 2018) with performance prism model(Neely et al. 2001) in the platform perspective of open big data. Our proposed model consists of five key building blocks for measuring performance of open data platform as follows: stakeholder contribution, big data governance capabilities, big data service capabilities, big data IT capabilities, and stakeholder satisfaction. In addition, our proposed model have twenty four evaluation indices and seventy five measurement items. We believe that our model could offer both research and practical implications for relevant research.