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How to

How to
课程网址: http://videolectures.net/iswc2011_hert_ontoaccess/  
主讲教师: Matthias Hert
开课单位: 苏黎世大学
开课时间: 2011-11-25
课程语种: 英语
中文简介:
业务关键型遗留应用程序通常依赖关系数据库来维持日常操作。在新开发的系统中引入语义Web技术通常很困难,因为这些系统需要与它们的前辈一起运行,并协同读取和更新现有数据。一种常见的模式是通过并行运行新系统,在两个系统之间建立数据桥,将数据从遗留系统增量迁移到后续系统。现有的方法可以在理论上作为数据桥部署,在实践中限制语义Web应用程序读取遗留数据,完全不允许更新操作。本文解释了如何使用RDB到RDF平台OntoAccess将遗留系统转换为支持语义Web的应用程序。通过一个案例研究,我们举例说明我们如何成功地在我们自己的一个大型遗留系统和它的长期替代品之间架起一座桥梁。我们详细阐述了在迁移过程中所面临的挑战,以及如何克服这些挑战。
课程简介: Business-critical legacy applications often rely on relational databases to sustain daily operations. Introducing Semantic Web technology in newly developed systems is often difficult, as these systems need to run in tandem with their predecessors and cooperatively read and update existing data. A common pattern is to incrementally migrate data from a legacy system to its successor by running the new system in parallel, with a data bridge in between. Existing approaches that can be deployed as a data bridge in theory, restrict Semantic Web-enabled applications to read legacy data in practice, disallowing update operations completely. This paper explains how our RDB-to-RDF platform OntoAccess can be used to transition legacy systems into Semantic Web-enabled applications. By means of a case study, we exemplify how we successfully made a bridge between one of our own large-scale legacy systems and its long-term replacement. We elaborate on challenges we faced during the migration process and how we were able to overcome them.
关 键 词: 关系数据库; 语义网; 迁移过程
课程来源: 视频讲座网
最后编审: 2019-12-19:lxf
阅读次数: 58