Software Development Methodologies and a Supportive Environment for Grid-based Services

近年来，已经显示出一个惊人的增长，在硬件的可用性能够与一个未定义的数量的计算节点，以提供服务，即硬件，是专为网格计算。在网格计算环境中运行的软件不仅要满足其提供的服务的功能需求，而且要满足服务提供者、资源提供者和最终用户的需求，这就需要重新评估当前系统处理这些需求的能力。此外，随着移动的和无处不在的环境和不断变化的操作条件，他们意味着即将激增，这将是不可能的传统的分布式软件系统上实现的基础假设一个恒定的environment.We的研究提供了一个框架，通过灵活的网格代理为基础的架构，在无处不在的环境中处理网格计算。首先，我们将问题空间划分为d ...更多信息 确定设计单元和实现所需的逻辑，确定描述代理可以做出的潜在选择的模式，以及确定服务提供商、资源提供商和最终用户的策略。然后，我们介绍了一个执行环境，并提出了一种方法，允许代理选择适当的行动。最后，我们实现了一个网格代理的框架，并进行了中等规模的测试验证和评估的目的。具体来说，我们已经（1）设计和构建了我们的网格代理的支持环境，（2）使用中等规模的场景验证了我们的方法的有效性，（3）组织和细化的具体问题，在这样的奋进。支持环境在集群上运行，目前能够运行涉及网格代理的中等规模场景，并提供调试工具来帮助开发。我们还花了一年时间来完善问题和实施，同时验证我们最初目标的完成情况。通过该项目，我们引入了（a）对预定义政策的有条件更改，（B）对附属关系更改的例外处理，（c）进入父子关系，更改附属机构和单独更改服务级别的参数，以及（d）谈判期间互动的定制模式。我们目前正在努力将我们完成的框架在国内和国际上发布。我们还计划继续使用框架，将这些方法应用于现实世界的情况，并确保框架的整体组织。少

Recent years have shown a stunning increase in the availability of hardware capable of working with an undefined number of computational nodes in order to provide services, i.e. hardware that is designed for grid computing. Software operating in a grid computing environment must not only meet the functional requirements of its provided service, but also cater to the needs of the service providers, resource providers, and end users, resulting in the need to reassess the ability of current systems to handle such requirements. Furthermore, with the impending proliferation of mobile and ubiquitous environments and the constantly changing operational conditions they imply, it will be impossible for conventional distributed software systems implemented on the base assumption of a constant environment to keep up.Our research provides a framework to handle grid computing in a ubiquitous environment through a flexible grid agent-based architecture. First, we divided the problem space into the d … More etermination of design units and the logic required for implementation, of patterns describing the potential choices an agent can make, and of the policies of the service providers, resource providers and end users. We then introduced an execution environment and proposed a method for allowing the agent to choose the proper action. Lastly, we implemented a framework for grid agents and ran medium-scale tests for verification and evaluation purposes.Specifically, we have (1) designed and constructed the supporting environment for our grid agents, (2) verified the efficacy of our methodology using medium-scale scenarios, and (3) organized and refined the specific issues involved in such an endeavor. The supporting environment runs on a cluster, is currently capable of running medium-scale scenarios involving grid agents and provides debugging facilities to aid development. We have also spent a year refining the issues and implementation while verifying the completion of our initial goals.Through the project, we have introduced (a) conditional alterations to pre-defined policies, (b) exception handling for changes in affiliate relationships, (c) parameters for entering into parent-child relationships, changing affiliates, and individually altering the service level, and (d) customization patterns for interaction during negotiations.We are currently working toward an internet-based domestic and international release of our completed framework. We also plan on continuing our work with the framework, applying these methods to real-world situations and ensuring the overall organization of the framework. Less