What is RDF syntax?
RDF/XML provides an abbreviation for the corresponding syntax when a node element about a resource has multiple property elements. This can be abbreviated by using multiple child property elements inside the node element describing the subject node.
Is RDF a semantic framework?
RDF 101. RDF (Resource Description Framework) is one of the three foundational Semantic Web technologies, the other two being SPARQL and OWL. In particular, RDF is the data model of the Semantic Web. That means that all data in Semantic Web technologies is represented as RDF.
What are the components of RDF?
An RDF triple contains three components:
- the subject , which is an RDF URI reference or a blank node.
- the predicate , which is an RDF URI reference.
- the object , which is an RDF URI reference, a literal or a blank node.
What do you mean by RDF and what are its sources?
Resource Description Framework (RDF) RDF is a standard model for data interchange on the Web. RDF has features that facilitate data merging even if the underlying schemas differ, and it specifically supports the evolution of schemas over time without requiring all the data consumers to be changed.
What is RDF Schema in Semantic Web?
RDF Schema (Resource Description Framework Schema, variously abbreviated as RDFS, RDF(S), RDF-S, or RDF/S) is a set of classes with certain properties using the RDF extensible knowledge representation data model, providing basic elements for the description of ontologies.
What is the role of Semantic Web?
The Semantic Web provides a common framework that allows data to be shared and reused across application, enterprise, and community boundaries. It is a collaborative effort led by W3C with participation from a large number of researchers and industrial partners.
What happened Semantic Web?
Today, work on the Semantic Web seems to have petered out. The W3C still does some work on the Semantic Web under the heading of “Data Activity,” which might charitably be called the fourth phase of the Semantic Web project.
What is RDF type?
rdf:type is an instance of rdf:Property that is used to state that a resource is an instance of a class. states that C is an instance of rdfs:Class and R is an instance of C. The rdfs:domain of rdf:type is rdfs:Resource.
Are there any difference between RDF and XML format?
The main difference: XML is a syntax while RDF is a data model. RDF has several syntaxes (Turtle, N3, etc) and XML is one of those (known as RDF/XML). Actually, RDF/XML is the only W3C standard syntax for RDF (Currently, there is Last Call on Turtle, a new W3C standard syntax for RDF).
What is a resourcedictionary?
A property specifying a property element, where the value type of that property is ResourceDictionary. Typically, this is the Resources property of FrameworkElement or FrameworkContentElement, or of Application in an application resources case.
Is there a resourcedictionary element subordinate to the page element?
There is no ResourceDictionary element subordinate to the Page.Resources property element, but its presence is implied; for more info see the “Notes on XAML syntax” section below. The XAML places a Style into the ResourceDictionary with an x:Key attribute value of “TextBlockStyle1”.
What is resource dictionary in XAML?
Color Palette Resources A resource dictionary is a repository for XAML resources, such as styles, that your app uses. You define the resources in XAML and can then retrieve them in XAML using the {StaticResource} markup extension and {ThemeResource} markup extension s.
What is the difference between source and values in a resource Dictionary?
Gets a collection of the ResourceDictionary dictionaries that constitute the various resource dictionaries in the merged dictionaries. Source Gets or sets a URI that provides the source location of a merged resource dictionary. Values Gets an ICollectionobject containing the values of the ResourceDictionary.