subsystem support service 中文意思是什麼
subsystem support service
解釋
子系統支持服務程序-
This paper stresses on discussing the architecture, access protocol and implementation mechanism based on xml and web services technologies, researches key technologies of metadata information service and data uniform access and management in database grid, designs and implements distributed mis subsystem and das subsystem, which support multi - domain management. mis can provides metadata information for the whole system, such as das and clients, it uses domain name 、 logical name and internal name of data object to uniformly name database resources in grid and implements name mapping mechanism and user view metadata information service and provides virtual organization and management of database resources. das can provide a scalable uniform data access by virtual organization and management of storage resources and multi - mode data share access mechanism, thus integrate database resources in grid and shields distribution and heterogeneity of resources and achieves transparent access. system adopts data access mechanism based on user request mapping to flexibly implement data access across multi domains, and adopts distributed data cache mechanism 、 security mechanism based gsi to provide high - performance secure data service for grid users
本文論述了griddaen - dai系統的邏輯結構、訪問協議、數據服務流程以及基於webservices 、 xml等技術的實現策略，重點研究數據庫網格中的元服務、數據統一訪問和管理等關鍵技術，設計和實現了支持多管理域的分散式元服務子系統和數據訪問服務子系統。其中元服務主要為整個系統提供各種元信息支持，它採用域名、數據對象的邏輯名稱、物理名稱和內部名稱對廣域環境下的數據庫數據進行了統一命名，實現了相應的名字映射機制和全局的用戶數據視圖服務，提供了數據庫資源的虛擬組織與管理方式;數據訪問服務通過提供可擴展的統一數據訪問和支持多種數據共享訪問模式，屏蔽了數據庫資源的分佈性和異構性，為用戶提供了統一透明的數據服務。 -
The ip multimedia subsystem introduced by 3gpp ’ s r5 specification take sip as the only session control protocol covered the user access, call control and service logic execute layer. accordingly, sip has been developed to support correspondent capabilities
3gpp在r5版本中提出的ip多媒體子系統將sip作為唯一的會話控制協議， sip跨越了ims網路的接入、控制、業務三個層次，相應地sip要具備接入控制、會話控制、業務生成三個層次的能力。
分享友人