一: 语义Web应用程序是最新的方向，那里的人都聚焦more.In在不久的将来，所有的Web应用程序将被开发语义架构和概念. 耶拿（API）和RDF包用于实现该目标.
Semantic concepts are a vast topic and I will discuss it in details in my next post and also in my tech website (www.techalpine.com).
At present I am working on a semantic prototype web application and I will publish it on my BLOG and website (www.techalpine.com) for your reference.
现在, Jena is a Java API for semantic web applicatons. And as it is a Java API I will be using it in my POC application.The key RDF package for the application developer is com.hp.hpl.jena.rdf.model.RDF is “Resource Description Framework” which can be defined as a common frame work for representing data (more commonly know as ‘resource’ in semantic term).The Jena API has been defined in terms of interfaces so that application code can work with different implementations without change. This package contains interfaces for representing models, 资源, properties, 文字, 报表和RDF的所有其他关键概念, 以及用于创建models.So应用程序代码ModelFactory保持独立的implementation.The com.hp.hpl.jena的…IMPL包中包含这可能是共同的许多实现实现类. For example, 他们定义的类ResourceImpl, PropertyImpl, 和LiteralImpl可直接使用，或者通过不同的实现子类.
