关键词：IBM模式开发工具；虚拟应用程序；Tomcat和HTTP服务器
摘 要：Virtual application patterns in IBM? PureApplication? System provide easy and powerful capabilities to construct a Platform as a Service Pattern. This 3-part article series shows how to use the IBM Pattern Development Kit to build virtual application patterns to deploy several classic web platform topologies. To demonstrate these capabilities, open source software Apache Tomcat, Apache HTTP server, and LiveJournal Memcached are included in this pattern.