It allows specifying a number of useful constraints on the individuals and relationships used in RDF triplets. ‘Toppings’ has three subclasses: (1) meat, (2) vegetable, and (3) cheese. You are in the right place. Some information. The Margherita pizza is modelled as subclass of NamedPizza, originating from Italy and must have exactly the toppings Tomato and Mozzarella, here shown in Manchester syntax: So find info and order pizza online! At maarslet-pizza.dk you can find everything you want to know about Pizza Ontology Example. That way, if we have PizzaMargherita1 --hasTopping--> Chilli --hasSpicyness--> Hot we also get PizzaMargherita1 --hasSpicyness--> Hot. 7.3.3 RDFS: RDF Schema. The Pizza ontology is a well-known OWL ontology tutorial. For example, the ontology URI can be changed, annotations on the ontology such as comments may be added and edited, and namespaces and imports can be set up via this tab. It is developed for educational purposes by the University of Manchester, which is a leading university in the development of semantic technologies. The A Practical Guide to Building OWL Ontologies tutorial, version V1.3 works properly with Protege 5.0 up to the 4.11 Automated Classification item.Of course the figures and the nomenclature are are slightly different. protege.stanford.edu. Searching for Pizza Ontology Example information? ... We’ll start with the first example . RDFS is the schema language for RDF. The property hierarchy of the Pizza ontology is not very wide, but another example would be: hasIngredient o hasSpicyness SubPropertyChainOf hasSpicyness. We will rely on the pizza example for: a better formalization of the domain knowledge leveraging OWL­DL reasoning capabilities for an easier curation of the ontology an overview of some good practice. More detailed in section 2. The ontology models the domain of pizzas and contains many specific types of pizzas, such as Margherita. 1The Ontology that we will create is based upon a Pizza Ontology that has been used as the basis for a course on editing Unfortunately, in the item 4.11 of the Protege tutorial it was created the owl: Nothing class highlighting inconsistencies in the Pizza ontology. And of cause you can order a tasty pizza! The pizza ontology and a tutorial that uses it is found at There are many ontology editors for example, protégé, onto Edit that allow developers to edit ontologies focus-ing on the protégé, currently there are two versions avail-able to download and it is an open source developed us-ing java. The pizza.owl ontology describes different kinds of pizza like vegetarian pizza or meaty pizza. 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2020 ontology example pizza