Search Results for "data model"

The annotation is essentially the association of some metadata with some other object, called target data.  The target data can be everything, starting with a table in a database, a file or document, or virtually any type of information. The annotation also has a wide range of meanings, so that it can be either a link to another table in a database or another database, a comment for a document, or the classical sticky note that is put on the fridge's door. The annotations a very important when working with great amount of data, the scientists and the

The future of Web languages seems to be the Semantic Web, and OWL is one of its activities. Now a question arises: What does OWL provide that XML and XML Schema don't? The answer is outlined below. 1. XML provides a syntax for structured documents, but doesn't define semantic constraints on the meaning of the documents. 2. XML Schema is a language for restricting the structure of XML documents. 3. RDF is a data model for objects ("resources") and relations between them; it provides simple semantics for this data model, and these data models can be

Resource Description Framework (RDF) is a family of World Wide Web Consortium (W3C) specifications originally designed as a metadata model but which has come to be used as a general method of modeling information, through a variety of syntax formats. The RDF metadata model is based upon the idea of making statements about resources in the form of subject-predicate-object expressions, called triples in RDF terminology. The subject denotes the resource, and the predicate denotes traits or aspects of the resource and expresses a relationship between the