java外文翻譯-管理系統(tǒng)-文庫(kù)吧
2025-04-17 18:36 本頁(yè)面
【正文】 an 12,000 eBay employees and contractors. Now more than a thousand eBay software developers work daily with Java applications. Java39。s inherent portability allows eBay to move to new hardware to take advantage of new technology, packaging, or pricing, without having to rewrite Java code. Amazon has created a Web Service application that enables users to browse their product catalog and place orders. uses a Java application that searches the Amazon catalog for books whose subject matches a userselected topic. The application displays ten books that match the chosen topic, and shows the author name, book title, list price, Amazon discount price, and the cover icon. The user may optionally view one review per displayed title and make a buying decision. Java in Data Warehousing amp。 Mining Although many panies currently benefit from data warehousing to support corporate 畢業(yè)設(shè)計(jì)（論文） 3 decision making, new business intelligence approaches continue to emerge that can be powered by Java technology. Applications such as data warehousing, data mining, Enterprise Information Portals and Knowledge Management Systems are able to provide insight into customer retention, purchasing patterns, and even future buying behavior. These applications can not only tell what has happened but why and what may happen given certain business conditions。 As a result of this information growth, people at all levels inside the enterprise, as well as suppliers, customers, and others in the value chain, are clamoring for subsets of the vast stores of information to help them make business decisions. While collecting and storing vast amounts of data is one thing, utilizing and deploying that data throughout the organization is another. The technical challenges inherent in integrating disparate data formats, platforms, and applications are significant. However, emerging standards such as the Application Programming Interfaces that prise the Java platform, as well as Extendable Markup Language technologies can facilitate the interchange of data and the development of next generation data warehousing and business intelligence applications. While Java technology has been used extensively for client side access and to presentation layer challenges, it is rapidly emerging as a significant tool for developing scaleable server side programs. The Java2 Platform, Enterprise Edition (J2EE) provides the object, transaction, and security support for building such systems. Metadata Issues One of the key issues that business intelligence developers must solve is that of inpatible metadata formats. Metadata can be defined as information about data or simply data about data. In practice, metadata is what most tools, databases, applications, and other information processes use to define, relate, and manipulate data objects within their own environments. It defines the structure and meaning of data objects managed by an application so that the application knows how to process requests or jobs involving those data objects. Developers can use this schema to create views for users. Also, users can browse the schema to better understand the structure and function of the database tables before launching a query. To address the metadata issue, a group of panies have joined to develop the Java Metadata Interface (JMI) API. The JMI API permits the access and manipulation of metadata in Java with standard metadata services. JMI is based on the Meta Object Facility (MOF) 畢業(yè)設(shè)計(jì)（論文） 4 specification from the Object Management Gro
畢業(yè)設(shè)計(jì)相關(guān)推薦
鄂ICP備17016276號(hào)-1