OGSA: Open Grid Services architecture proposed for distributed system
Ian Foster, Carl Kesselman, Jeffrey M. Nick, Steven Tuecke
Summary:
In the e-commerce and E-scientific research, we often need to form a distributed, heterogeneous, dynamic Vo (Virtual Organizations) integration from different resources of an enterprise, or to the external shared resource provided by the service provider. service.
This integration solves different QoS (Qualities of Service) because of the different local platforms, so challenges existing technologies.
We propose OGSA to face this challenge, which is built in the concept and technology of Grid and Web Services. This architecture defines a unified, explicit service semantic: Grid Service. Define the standard mechanism for creating, naming, and discovering temporary Grid Service Instance. Providing local transparency and multi-protocol binding for Service Instance, supporting integration with local environments.
OGSA also defines the WSDL (Web Services Description Language "interface and related rules, mechanisms, which are caused by creation and combining complex distributed systems, including Lifetime management, Change management, and notification.
Service binding supports reliable call, authentication, authorization, and delegation.
If needed, we propose to see the early foundation articles, "The anatomy of the grid". This article describes how the GRID mechanism implements a service-oriented architecture that explains how Grid's function can be integrated into the Web Services framework. Examples how our architecture is applied to commercial calculations, inside or The basis of the distributed system integration of the organization.
