NMI: Collaborative Proposal: Middleware for Grid Portal Development

这个建议旨在使用portlet/容器方法来构建门户，从而促进网格门户的开发。 这种方法将门户控制和基本服务与内容分开。 中央控制服务器提供基本的门户服务，如身份验证、访问控制和用户可定制性。 在这个框架中，门户内容和自定义服务使用称为Portlet的软件组件插入。 容器管理Portlet的组织和交互，Portlet提供特定的Web内容（本地或远程），包括网格服务接口。基于Portlet的设计概念支持分布式、松散耦合的开发和部署：用户界面和科学界面组件可以使用标准Portlet API独立开发，然后在门户之间重用。服务和接口可以以定义良好的方式安装和添加到各种门户。 Portlet模型也非常适合新兴的开放网格服务体系结构（OGSA）及其实现规范开放网格服务基础设施（OGSI）。因为OGSI是基于新的Web服务标准的，所以每个网格服务都可以直接由自定义Portlet访问。 使网格容易接近的国际社会的研究人员的影响可能是非常大的，作为巨大的资源，已收集和组织在最近几年的基础网格技术成为可见的可用组件的全球研究界的桌面。 该项目将大大简化网格技术的使用，并通过可重用性和简化安装来促进网格门户技术的扩散，从而使新服务随时可供个人研究人员和团体使用。 科学家将能够轻松地与世界各地的合作者组成灵活的小组，并使用网格共享数据和资源。 这个项目提供了工具，建立和特设用户组之间的合作，使这些科学家有效地相互沟通，他们正在做的科学，并提供定制的网格视图，以满足合作团体的需要。

This proposal is designed to facilitate grid portal development using the portlet/container approach to building portals. This approach separates portal control and basic services from content. A central control server provides basic portal services such as authentication, access control, and user customizability. Into this framework, portal content and custom services are plugged in using software components called portlets. The container manages the organization and interaction of the portlets, and the portlets deliver specific web content (either local or remote), including Grid service interfaces.The portlet-based design concept supports distributed, loosely coupled development and deployment: user interfaces and science interface components can be developed independently, using the standard portlet API, and then reused between portals. Services and interfaces may be installed and added to various portals in a well-defined way. The portlet model is also an ideal fit to the emerging Open Grid Services Architecture (OGSA) and its implementation specification, the Open Grid Service Infrastructure (OGSI). Because OGSI is based on the new web-service standards, each Grid service can be directly accessed by a custom portlet. The impact of making the Grid readily approachable by the international community of researchers is potentially extremely large, as the immense resources that have been collected and organized in recent years by the underlying Grid technologies become visible as usable components of the global research community's desktop. This project will greatly simplify the use of Grid technologies and allow new services to be made readily available to individual researchers and groups by enabling the proliferation of Grid portal technology through reusability and simplification of installation. Scientists will be able to easily form flexible groups with collaborators across the world and use the Grid to share data and resources. This project provides tools for collaboration between established and ad hoc groups of users, enabling those scientists to communicate effectively with each other about the science they are doing, and providing customized views of the Grid that are tailored to meet the needs of collaborating groups.