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<span class="toggle-list-item__label">Avvertenze</span> </a></li> </ul> </div><label class="main-menu-mask" for="main-menu-input"></label> </nav> <div class="branding-box"><a href="https://it-m-wikipedia-org.translate.goog/wiki/Pagina_principale?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB"> <span><img src="/static/images/mobile/copyright/wikipedia-wordmark-en.svg" alt="Wikipedia" width="120" height="18" style="width: 7.5em; height: 1.125em;"> </span> </a> </div> <form action="/w/index.php" method="get" class="minerva-search-form"> <div class="search-box"><input type="hidden" name="title" value="Speciale:Ricerca"> <input class="search skin-minerva-search-trigger" id="searchInput" type="search" name="search" placeholder="Cerca in Wikipedia" aria-label="Cerca in Wikipedia" autocapitalize="sentences" title="Cerca in Wikipedia [f]" accesskey="f"> <span class="search-box-icon-overlay"><span class="minerva-icon minerva-icon--search"></span> </span> </div><button id="searchIcon" class="cdx-button cdx-button--size-large cdx-button--icon-only cdx-button--weight-quiet skin-minerva-search-trigger"> <span class="minerva-icon minerva-icon--search"></span> <span>Ricerca</span> </button> </form> <nav class="minerva-user-navigation" aria-label="User navigation"> </nav> </div> </header> <main id="content" class="mw-body"> <div class="banner-container"> <div id="siteNotice"></div> </div> <div class="pre-content heading-holder"> <div class="page-heading"> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Resource Description Framework</span></h1> <div class="tagline"> modello dati per la descrizione delle risorse sul Web </div> </div> <nav class="page-actions-menu"> <ul id="p-views" class="page-actions-menu__list"> <li id="language-selector" class="page-actions-menu__list-item"><a role="button" href="https://it-m-wikipedia-org.translate.goog/wiki/Resource_Description_Framework?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#p-lang" data-mw="interface" data-event-name="menu.languages" title="Lingua" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet language-selector"> <span class="minerva-icon minerva-icon--language"></span> <span>Lingua</span> </a></li> <li id="page-actions-watch" class="page-actions-menu__list-item"><a role="button" id="ca-watch" href="https://it-m-wikipedia-org.translate.goog/w/index.php?title=Speciale:Entra&returnto=Resource+Description+Framework&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" data-event-name="menu.watch" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet menu__item--page-actions-watch"> <span class="minerva-icon minerva-icon--star"></span> <span>Segui</span> </a></li> <li id="page-actions-edit" class="page-actions-menu__list-item"><a role="button" id="ca-edit" href="https://it-m-wikipedia-org.translate.goog/w/index.php?title=Resource_Description_Framework&action=edit&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" data-event-name="menu.edit" data-mw="interface" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet edit-page menu__item--page-actions-edit"> <span class="minerva-icon minerva-icon--edit"></span> <span>Modifica</span> </a></li> </ul> </nav> <div id="mw-content-subtitle"></div> </div> <div id="bodyContent" class="content"> <div id="mw-content-text" class="mw-body-content"> <script>function mfTempOpenSection(id){var block=document.getElementById("mf-section-"+id);block.className+=" open-block";block.previousSibling.className+=" open-block";}</script> <div class="mw-content-ltr mw-parser-output" lang="it" dir="ltr"> <section class="mf-section-0" id="mf-section-0"> <style data-mw-deduplicate="TemplateStyles:r133964453">.mw-parser-output .avviso .mbox-text-div>div,.mw-parser-output .avviso .mbox-text-full-div>div{font-size:90%}.mw-parser-output .avviso .mbox-image{flex-basis:52px;flex-grow:0;flex-shrink:0}.mw-parser-output .avviso .mbox-text-full-div .hide-when-compact{display:block}</style> <div style="" class="ambox metadata plainlinks avviso avviso-contenuto"> <div class="avviso-testo mbox-text"> <div class="mbox-text-div"> <b>Questa voce o sezione sull'argomento Internet <a href="https://it-m-wikipedia-org.translate.goog/wiki/Wikipedia:Uso_delle_fonti?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Wikipedia:Uso delle fonti">non cita le fonti necessarie</a> o quelle presenti sono insufficienti</b>. <div class="hide-when-compact"> <div class="noprint"> <hr>Puoi <a class="external text" href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://it.wikipedia.org/w/index.php?title%3DResource_Description_Framework%26action%3Dedit">migliorare questa voce</a> aggiungendo citazioni da <a href="https://it-m-wikipedia-org.translate.goog/wiki/Wikipedia:Fonti_attendibili?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Wikipedia:Fonti attendibili">fonti attendibili</a> secondo le <a href="https://it-m-wikipedia-org.translate.goog/wiki/Wikipedia:Uso_delle_fonti?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Wikipedia:Uso delle fonti">linee guida sull'uso delle fonti</a>. Segui i suggerimenti del <a href="https://it-m-wikipedia-org.translate.goog/wiki/Progetto:Informatica?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Progetto:Informatica">progetto di riferimento</a>. </div> </div> </div> </div> </div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r133964453"> <div style="" class="ambox metadata noprint plainlinks avviso avviso-stile"> <div class="avviso-testo mbox-text"> <div class="mbox-text-div"> <b>Questa voce o sezione sull'argomento Internet non è ancora <a href="https://it-m-wikipedia-org.translate.goog/wiki/Aiuto:Wikificare?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Aiuto:Wikificare">formattata</a> secondo gli <a href="https://it-m-wikipedia-org.translate.goog/wiki/Aiuto:Manuale_di_stile?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Aiuto:Manuale di stile">standard</a></b>. <div class="hide-when-compact"> <div class="noprint"> <hr><a class="external text" href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://it.wikipedia.org/w/index.php?title%3DResource_Description_Framework%26action%3Dedit">Contribuisci</a> a migliorarla secondo le <a href="https://it-m-wikipedia-org.translate.goog/wiki/Aiuto:Manuale_di_stile?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Aiuto:Manuale di stile">convenzioni di Wikipedia</a>. Segui i suggerimenti del <a href="https://it-m-wikipedia-org.translate.goog/wiki/Progetto:Informatica?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Progetto:Informatica">progetto di riferimento</a>. </div> </div> </div> </div> </div> <p>Il <b>Resource Description Framework</b> (<b>RDF</b>) è lo strumento base proposto da <a href="https://it-m-wikipedia-org.translate.goog/wiki/W3C?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="mw-redirect" title="W3C">W3C</a> per la codifica, lo scambio e il riutilizzo di metadati strutturati e consente l'interoperabilità semantica tra <a href="https://it-m-wikipedia-org.translate.goog/wiki/Applicazioni?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="mw-redirect" title="Applicazioni">applicazioni</a> che condividono le informazioni sul <a href="https://it-m-wikipedia-org.translate.goog/wiki/Web?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="mw-redirect" title="Web">Web</a>. È costituito da due componenti:</p> <ul> <li><b>RDF Model and Syntax</b>: espone la struttura del modello RDF, e descrive una possibile sintassi.</li> <li><b>RDF Schema</b>: espone la sintassi per definire schemi e vocabolari per i metadati.</li> </ul> <p>L'RDF Data Model si basa su tre principi chiave:</p> <ol> <li>Qualunque cosa può essere identificata da un <a href="https://it-m-wikipedia-org.translate.goog/wiki/Uniform_Resource_Identifier?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Uniform Resource Identifier">Uniform Resource Identifier</a> (URI).</li> <li><i>The least power</i>: utilizzare il linguaggio meno espressivo per definire qualunque cosa.</li> <li>Qualunque cosa può dire qualunque cosa su qualunque cosa.</li> </ol> <div id="toc" class="toc" role="navigation" aria-labelledby="mw-toc-heading"> <input type="checkbox" role="button" id="toctogglecheckbox" class="toctogglecheckbox" style="display:none"> <div class="toctitle" lang="it" dir="ltr"> <h2 id="mw-toc-heading">Indice</h2><span class="toctogglespan"><label class="toctogglelabel" for="toctogglecheckbox"></label></span> </div> <ul> <li class="toclevel-1 tocsection-1"><a href="https://it-m-wikipedia-org.translate.goog/wiki/Resource_Description_Framework?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#Principi_e_modello_dei_dati"><span class="tocnumber">1</span> <span class="toctext">Principi e modello dei dati</span></a></li> <li class="toclevel-1 tocsection-2"><a href="https://it-m-wikipedia-org.translate.goog/wiki/Resource_Description_Framework?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#RDF_Container"><span class="tocnumber">2</span> <span class="toctext">RDF Container</span></a></li> <li class="toclevel-1 tocsection-3"><a href="https://it-m-wikipedia-org.translate.goog/wiki/Resource_Description_Framework?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#Rappresentazione_fisica_del_modello"><span class="tocnumber">3</span> <span class="toctext">Rappresentazione fisica del modello</span></a></li> <li class="toclevel-1 tocsection-4"><a href="https://it-m-wikipedia-org.translate.goog/wiki/Resource_Description_Framework?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#Esempio"><span class="tocnumber">4</span> <span class="toctext">Esempio</span></a></li> <li class="toclevel-1 tocsection-5"><a href="https://it-m-wikipedia-org.translate.goog/wiki/Resource_Description_Framework?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#RDF_Schema"><span class="tocnumber">5</span> <span class="toctext">RDF Schema</span></a></li> <li class="toclevel-1 tocsection-6"><a href="https://it-m-wikipedia-org.translate.goog/wiki/Resource_Description_Framework?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#Esempi_RDFS:_Classi_e_Propriet%C3%A0"><span class="tocnumber">6</span> <span class="toctext">Esempi RDFS: Classi e Proprietà</span></a> <ul> <li class="toclevel-2 tocsection-7"><a href="https://it-m-wikipedia-org.translate.goog/wiki/Resource_Description_Framework?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#Esempio_1"><span class="tocnumber">6.1</span> <span class="toctext">Esempio 1</span></a></li> <li class="toclevel-2 tocsection-8"><a href="https://it-m-wikipedia-org.translate.goog/wiki/Resource_Description_Framework?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#Esempio_2"><span class="tocnumber">6.2</span> <span class="toctext">Esempio 2</span></a></li> </ul></li> <li class="toclevel-1 tocsection-9"><a href="https://it-m-wikipedia-org.translate.goog/wiki/Resource_Description_Framework?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#Voci_correlate"><span class="tocnumber">7</span> <span class="toctext">Voci correlate</span></a></li> <li class="toclevel-1 tocsection-10"><a href="https://it-m-wikipedia-org.translate.goog/wiki/Resource_Description_Framework?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#Altri_progetti"><span class="tocnumber">8</span> <span class="toctext">Altri progetti</span></a></li> <li class="toclevel-1 tocsection-11"><a href="https://it-m-wikipedia-org.translate.goog/wiki/Resource_Description_Framework?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#Collegamenti_esterni"><span class="tocnumber">9</span> <span class="toctext">Collegamenti esterni</span></a></li> </ul> </div> </section> <div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(1)"> <span class="indicator mf-icon mf-icon-expand mf-icon--small"></span> <h2 id="Principi_e_modello_dei_dati">Principi e modello dei dati</h2><span class="mw-editsection"> <a role="button" href="https://it-m-wikipedia-org.translate.goog/w/index.php?title=Resource_Description_Framework&action=edit&section=1&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Modifica la sezione Principi e modello dei dati" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>modifica</span> </a> </span> </div> <section class="mf-section-1 collapsible-block" id="mf-section-1"> <p>Qualunque cosa descritta da RDF è detta risorsa. Principalmente una risorsa è reperibile sul <a href="https://it-m-wikipedia-org.translate.goog/wiki/Web?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="mw-redirect" title="Web">web</a>, ma RDF può descrivere anche risorse che non si trovano direttamente sul <a href="https://it-m-wikipedia-org.translate.goog/wiki/Web?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="mw-redirect" title="Web">web</a>. Ogni risorsa è identificata da un URI, <a href="https://it-m-wikipedia-org.translate.goog/wiki/Uniform_Resource_Identifier?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Uniform Resource Identifier">Uniform Resource Identifier</a>.</p> <p>Il modello di dati RDF è formato da risorse, proprietà e valori. Le proprietà sono delle relazioni che legano tra loro risorse e valori, e sono anch'esse identificate da URI. Un valore, invece, è un tipo di dato primitivo, che può essere una stringa contenente l'URI di una risorsa.</p> <p>L'unità base per rappresentare un'informazione in RDF è lo statement. Uno statement è una tripla del tipo <i>Soggetto</i> – <i>Predicato</i> – <i>Oggetto</i>, dove il soggetto è una risorsa, il predicato è una proprietà e l'oggetto è un valore (e quindi anche un URI che punta ad un'altra risorsa).</p> <p>Il data model RDF permette di definire un modello semplice per descrivere le relazioni tra le risorse, in termini di proprietà identificate da un nome e relativi valori. Tuttavia, RDF data model non fornisce nessun meccanismo per dichiarare queste proprietà, né per definire le relazioni tra queste proprietà ed altre risorse. Tale compito è definito da RDF Schema.</p> </section> <div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(2)"> <span class="indicator mf-icon mf-icon-expand mf-icon--small"></span> <h2 id="RDF_Container">RDF Container</h2><span class="mw-editsection"> <a role="button" href="https://it-m-wikipedia-org.translate.goog/w/index.php?title=Resource_Description_Framework&action=edit&section=2&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Modifica la sezione RDF Container" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>modifica</span> </a> </span> </div> <section class="mf-section-2 collapsible-block" id="mf-section-2"> <p>RDF quando deve far riferimento a più di una risorsa, per esempio per descrivere il fatto che la risorsa è associata a più proprietà, definisce dei contenitori (container), ossia liste di risorse. Tre sono i tipi di contenitori:</p> <ul> <li><b>Bag</b>, è una lista non ordinata di risorse o costanti. Viene utilizzato per dichiarare che una proprietà ha valori multipli. Per esempio i componenti di un convegno.</li> <li><b>Sequence</b>, differisce da Bag per il fatto che l'ordine delle risorse è significativo. Per esempio si vuole mantenere l'ordine alfabetico di un insieme di nomi, gli autori di un sito.</li> <li><b>Alternative</b>, è una lista di risorse che definiscono un'alternativa per il valore singolo di una proprietà. Per esempio per fornire titoli alternativi in varie lingue.</li> </ul> </section> <div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(3)"> <span class="indicator mf-icon mf-icon-expand mf-icon--small"></span> <h2 id="Rappresentazione_fisica_del_modello">Rappresentazione fisica del modello</h2><span class="mw-editsection"> <a role="button" href="https://it-m-wikipedia-org.translate.goog/w/index.php?title=Resource_Description_Framework&action=edit&section=3&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Modifica la sezione Rappresentazione fisica del modello" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>modifica</span> </a> </span> </div> <section class="mf-section-3 collapsible-block" id="mf-section-3"> <p>Un modello RDF è rappresentabile da un <a href="https://it-m-wikipedia-org.translate.goog/wiki/Grafo?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Grafo">grafo</a> orientato sui cui nodi ci sono risorse o tipi primitivi e i cui archi rappresentano le proprietà. Un grafo RDF è rappresentato fisicamente mediante una <a href="https://it-m-wikipedia-org.translate.goog/wiki/Serializzazione?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Serializzazione">serializzazione</a>.</p> <p>Le principali serializzazioni adottabili per un grafo RDF sono:</p> <ul> <li><a href="https://it-m-wikipedia-org.translate.goog/w/index.php?title=RDF/XML&action=edit&redlink=1&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="new" title="RDF/XML (la pagina non esiste)">RDF/XML</a>: documento RDF è serializzato in un file <a href="https://it-m-wikipedia-org.translate.goog/wiki/XML?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="XML">XML</a>.</li> <li><a href="https://it-m-wikipedia-org.translate.goog/w/index.php?title=N-Triples&action=edit&redlink=1&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="new" title="N-Triples (la pagina non esiste)">N-Triples</a>: serializzazione del grafo come un insieme di triple <i>soggetto - predicato - oggetto</i>.</li> <li><a href="https://it-m-wikipedia-org.translate.goog/wiki/Notation3?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Notation3">Notation3</a>: serializzazione del grafo descrivendo, una per volta, una risorsa e tutte le sue proprietà.</li> </ul> <p>In particolare la serializzazione in XML può avvenire secondo due metodi, quello classico e quello abbreviato, più leggibile per l'uomo.</p> </section> <div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(4)"> <span class="indicator mf-icon mf-icon-expand mf-icon--small"></span> <h2 id="Esempio">Esempio</h2><span class="mw-editsection"> <a role="button" href="https://it-m-wikipedia-org.translate.goog/w/index.php?title=Resource_Description_Framework&action=edit&section=4&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Modifica la sezione Esempio" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>modifica</span> </a> </span> </div> <section class="mf-section-4 collapsible-block" id="mf-section-4"> <p>Si supponga di voler serializzare la frase "Mario_Rossi" "è_autore_di" "Rosso_di_sera_bel_tempo_si_spera": il risultato in RDF/XML sarà:</p> <div class="mw-highlight mw-highlight-lang-xml mw-content-ltr" dir="ltr"> <pre><span></span><span class="w"> </span><span class="nt"><rdf:RDF</span><span class="w"> </span> <span class="w"> </span><span class="na">xmlns:rdf=</span><span class="s">"http://www.w3.org/1999/02/22-rdf-syntax-ns#"</span> <span class="w"> </span><span class="na">xmlns:au=</span><span class="s">"http://description.org/schema/"</span><span class="nt">></span> <span class="w"> </span><span class="nt"><rdf:Description</span><span class="w"> </span><span class="na">about=</span><span class="s">"http://www.book.it/Rosso_di_sera_bel_tempo_si_spera/"</span><span class="nt">></span> <span class="w"> </span><span class="nt"><au:author></span>Mario_Rossi<span class="nt"></au:author></span> <span class="w"> </span><span class="nt"></rdf:Description></span> <span class="w"> </span><span class="nt"></rdf:RDF></span> </pre> </div> </section> <div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(5)"> <span class="indicator mf-icon mf-icon-expand mf-icon--small"></span> <h2 id="RDF_Schema">RDF Schema</h2><span class="mw-editsection"> <a role="button" href="https://it-m-wikipedia-org.translate.goog/w/index.php?title=Resource_Description_Framework&action=edit&section=5&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Modifica la sezione RDF Schema" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>modifica</span> </a> </span> </div> <section class="mf-section-5 collapsible-block" id="mf-section-5"> <style data-mw-deduplicate="TemplateStyles:r130657691">body:not(.skin-minerva) .mw-parser-output .vedi-anche{font-size:95%}</style> <style data-mw-deduplicate="TemplateStyles:r139142988">.mw-parser-output .hatnote-content{align-items:center;display:flex}.mw-parser-output .hatnote-icon{flex-shrink:0}.mw-parser-output .hatnote-icon img{display:flex}.mw-parser-output .hatnote-text{font-style:italic}body:not(.skin-minerva) .mw-parser-output .hatnote{border:1px solid #CCC;display:flex;margin:.5em 0;padding:.2em .5em}body:not(.skin-minerva) .mw-parser-output .hatnote-text{padding-left:.5em}body.skin-minerva .mw-parser-output .hatnote-icon{padding-right:8px}body.skin-minerva .mw-parser-output .hatnote-icon img{height:auto;width:16px}body.skin--responsive .mw-parser-output .hatnote a.new{color:#d73333}body.skin--responsive .mw-parser-output .hatnote a.new:visited{color:#a55858}</style> <div class="hatnote noprint vedi-anche"> <div class="hatnote-content"> <span class="noviewer hatnote-icon" typeof="mw:File"><span> <noscript> <img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/87/Magnifying_glass_icon_mgx2.svg/18px-Magnifying_glass_icon_mgx2.svg.png" decoding="async" width="18" height="18" class="mw-file-element" data-file-width="286" data-file-height="280"> </noscript><span class="lazy-image-placeholder" style="width: 18px;height: 18px;" data-src="//upload.wikimedia.org/wikipedia/commons/thumb/8/87/Magnifying_glass_icon_mgx2.svg/18px-Magnifying_glass_icon_mgx2.svg.png" data-width="18" data-height="18" data-srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/87/Magnifying_glass_icon_mgx2.svg/27px-Magnifying_glass_icon_mgx2.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/87/Magnifying_glass_icon_mgx2.svg/36px-Magnifying_glass_icon_mgx2.svg.png 2x" data-class="mw-file-element"> </span></span></span> <span class="hatnote-text">Lo stesso argomento in dettaglio: <b><a href="https://it-m-wikipedia-org.translate.goog/wiki/RDF_Schema?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="RDF Schema">RDF Schema</a></b>.</span> </div> </div> <p>In RDF Schema (RDFS) ogni predicato è in relazione con altri predicati e permette di dichiarare l'esistenza di proprietà di un concetto, che permettano di esprimere con metodo sistematico affermazioni simili su risorse simili. RDF Schema permette di definire nuovi tipi di classe. Inoltre specificando il concetto di classe e sottoclasse, consente di definire gerarchie di classi. In RDF si possono rappresentare le risorse come istanze di classi e definire sottoclassi e tipi.</p> <dl> <dt> Classi RDF </dt> </dl> <p>Ogni risorsa descritta in RDF è istanza della <i>classe rdfs:Resource</i>. <br> Le sottoclassi di <i>rdfs:Resource</i> sono:<br><i>rdfs:Literal</i> Rappresenta un letterale, una stringa di testo.<br><i>rdfs:Property</i> Rappresenta le proprietà.<br><i>rdf:Class</i> Una classe dei linguaggi object-oriented. <br></p> <dl> <dt> Proprietà RDF </dt> </dl> <p><i>rdf:type</i> Indica che una risorsa è del tipo della classe che viene specificata.<br><i>rdfs:subClassOf</i> Indica la relazione classe/sottoclasse fra due classi. <br> L'ereditarietà può essere multipla.<br><i>rdfs:subPropertyOf</i> Indica che una proprietà è specializzazione di un'altra.<br><i>rdfs:seeAlso</i> Specifica che la risorsa è anche descritta in altre parti.<br><i>rdfs:isDefinedBy</i> Indica la risorsa "soggetto dell'asserzione" ovvero chi ha fatto l'asserzione.<br></p> <dl> <dt> Vincoli RDF </dt> </dl> <p><i>rdfs:range</i> (codominio) È utilizzato come proprietà di una risorsa; indica le classi che faranno parte di una asserzione con la proprietà. <br><i>rdfs:domain</i> (dominio) Indica la classe a cui può essere applicata la proprietà.</p> </section> <div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(6)"> <span class="indicator mf-icon mf-icon-expand mf-icon--small"></span> <h2 id="Esempi_RDFS:_Classi_e_Proprietà"><span id="Esempi_RDFS:_Classi_e_Propriet.C3.A0"></span>Esempi RDFS: Classi e Proprietà</h2><span class="mw-editsection"> <a role="button" href="https://it-m-wikipedia-org.translate.goog/w/index.php?title=Resource_Description_Framework&action=edit&section=6&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Modifica la sezione Esempi RDFS: Classi e Proprietà" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>modifica</span> </a> </span> </div> <section class="mf-section-6 collapsible-block" id="mf-section-6"> <div class="mw-heading mw-heading3"> <h3 id="Esempio_1">Esempio 1</h3><span class="mw-editsection"> <a role="button" href="https://it-m-wikipedia-org.translate.goog/w/index.php?title=Resource_Description_Framework&action=edit&section=7&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Modifica la sezione Esempio 1" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>modifica</span> </a> </span> </div> <p>La classe gatto viene dichiarata sottoclasse della classe animale.</p> <div class="mw-highlight mw-highlight-lang-xml mw-content-ltr" dir="ltr"> <pre><span></span><span class="w"> </span><span class="nt"><rdf:Description</span><span class="w"> </span><span class="na">rdf:ID=</span><span class="s">"Animale"</span><span class="nt">></span> <span class="w"> </span><span class="nt"><rdf:type</span> <span class="w"> </span><span class="na">rdf:resource=</span><span class="s">"http://www.w3.org/2000/01/rdf-schema#Class"</span><span class="nt">/></span> <span class="w"> </span><span class="nt"></rdf:Description></span> <span class="w"> </span><span class="nt"><rdf:Description</span><span class="w"> </span><span class="na">rdf:ID=</span><span class="s">"gatto"</span><span class="nt">></span> <span class="w"> </span><span class="nt"><rdf:type</span> <span class="w"> </span><span class="na">rdf:resource=</span><span class="s">"http://www.w3.org/2000/01/rdf-schema#Class"</span><span class="nt">/></span> <span class="w"> </span><span class="nt"><rdfs:subClassOf</span><span class="w"> </span><span class="na">rdf:resource=</span><span class="s">"#Animale"</span><span class="nt">/></span> <span class="w"> </span><span class="nt"></rdf:Description></span> </pre> </div> <div class="mw-heading mw-heading3"> <h3 id="Esempio_2">Esempio 2</h3><span class="mw-editsection"> <a role="button" href="https://it-m-wikipedia-org.translate.goog/w/index.php?title=Resource_Description_Framework&action=edit&section=8&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Modifica la sezione Esempio 2" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>modifica</span> </a> </span> </div> <p>La proprietà matrice viene dichiarata come specializzazione della proprietà madre.<br></p> <div class="mw-highlight mw-highlight-lang-xml mw-content-ltr" dir="ltr"> <pre><span></span><span class="w"> </span><span class="nt"><rdf:Description</span><span class="w"> </span><span class="na">rdf:ID=</span><span class="s">"Madre"</span><span class="nt">></span> <span class="w"> </span><span class="nt"><rdf:type</span><span class="w"> </span> <span class="w"> </span><span class="na">rdf:resource=</span><span class="s">"http://www.w3.org/1999/02/22-rdf-syntax-ns#Property"</span><span class="nt">/></span> <span class="w"> </span><span class="nt"></rdf:Description></span> <span class="w"> </span><span class="nt"><rdf:Description</span><span class="w"> </span><span class="na">rdf:ID=</span><span class="s">"Matrice"</span><span class="nt">></span> <span class="w"> </span><span class="nt"><rdf:type</span><span class="w"> </span> <span class="w"> </span><span class="na">rdf:resource=</span><span class="s">"http://www.w3.org/1999/02/22-rdf-syntax-ns#Property"</span><span class="nt">/></span> <span class="w"> </span><span class="nt"><rdfs:subPropertyOf</span><span class="w"> </span><span class="na">rdf:resource=</span><span class="s">"#Madre"</span><span class="nt">/></span> <span class="w"> </span><span class="nt"></rdf:Description></span> </pre> </div> </section> <div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(7)"> <span class="indicator mf-icon mf-icon-expand mf-icon--small"></span> <h2 id="Voci_correlate">Voci correlate</h2><span class="mw-editsection"> <a role="button" href="https://it-m-wikipedia-org.translate.goog/w/index.php?title=Resource_Description_Framework&action=edit&section=9&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Modifica la sezione Voci correlate" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>modifica</span> </a> </span> </div> <section class="mf-section-7 collapsible-block" id="mf-section-7"> <ul> <li><a href="https://it-m-wikipedia-org.translate.goog/wiki/Annotea?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Annotea">Annotea</a></li> <li><a href="https://it-m-wikipedia-org.translate.goog/wiki/Web_Ontology_Language?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Web Ontology Language">Web Ontology Language</a></li> <li><a href="https://it-m-wikipedia-org.translate.goog/wiki/Ontologia_(informatica)?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Ontologia (informatica)">Ontologia (informatica)</a></li> <li><a href="https://it-m-wikipedia-org.translate.goog/wiki/Web_semantico?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Web semantico">Web semantico</a></li> <li><a href="https://it-m-wikipedia-org.translate.goog/wiki/FOAF?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="FOAF">FOAF</a>+<a href="https://it-m-wikipedia-org.translate.goog/w/index.php?title=Description_of_a_Career&action=edit&redlink=1&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="new" title="Description of a Career (la pagina non esiste)">DOAC</a></li> <li><a href="https://it-m-wikipedia-org.translate.goog/wiki/DataPortability?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="DataPortability">DataPortability</a></li> <li><a href="https://it-m-wikipedia-org.translate.goog/wiki/Jena_(informatica)?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Jena (informatica)">Jena (informatica)</a></li> <li><a href="https://it-m-wikipedia-org.translate.goog/w/index.php?title=OpenRDF&action=edit&redlink=1&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="new" title="OpenRDF (la pagina non esiste)">OpenRDF</a></li> <li><a href="https://it-m-wikipedia-org.translate.goog/w/index.php?title=RDF/XML&action=edit&redlink=1&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="new" title="RDF/XML (la pagina non esiste)">RDF/XML</a></li> <li><a href="https://it-m-wikipedia-org.translate.goog/wiki/Notation3?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Notation3">Notation3</a></li> <li><a href="https://it-m-wikipedia-org.translate.goog/wiki/Turtle_(formato)?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Turtle (formato)">Turtle (formato)</a></li> <li><a href="https://it-m-wikipedia-org.translate.goog/w/index.php?title=TriG&action=edit&redlink=1&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="new" title="TriG (la pagina non esiste)">TriG</a></li> <li><a href="https://it-m-wikipedia-org.translate.goog/w/index.php?title=TriX&action=edit&redlink=1&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="new" title="TriX (la pagina non esiste)">TriX</a></li> <li><a href="https://it-m-wikipedia-org.translate.goog/w/index.php?title=N-Triples&action=edit&redlink=1&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="new" title="N-Triples (la pagina non esiste)">N-Triples</a></li> <li><a href="https://it-m-wikipedia-org.translate.goog/wiki/Grafo_nominato?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Grafo nominato">Grafo nominato</a></li> </ul> </section> <div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(8)"> <span class="indicator mf-icon mf-icon-expand mf-icon--small"></span> <h2 id="Altri_progetti">Altri progetti</h2><span class="mw-editsection"> <a role="button" href="https://it-m-wikipedia-org.translate.goog/w/index.php?title=Resource_Description_Framework&action=edit&section=10&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Modifica la sezione Altri progetti" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>modifica</span> </a> </span> </div> <section class="mf-section-8 collapsible-block" id="mf-section-8"> <div id="interProject" class="toccolours" style="display: none; clear: both; margin-top: 2em"> <p id="sisterProjects" style="background-color: #efefef; color: black; font-weight: bold; margin: 0"><span>Altri progetti</span></p> <ul title="Collegamenti verso gli altri progetti Wikimedia"> <li class="" title=""><span class="plainlinks" title="commons:Category:Resource Description Framework"><a class="external text" href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://commons.wikimedia.org/wiki/Category:Resource_Description_Framework?uselang%3Dit">Wikimedia Commons</a></span></li> </ul> </div> <ul> <li><span typeof="mw:File"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://commons.wikimedia.org/wiki/?uselang%3Dit" title="Collabora a Wikimedia Commons"> <noscript> <img alt="Collabora a Wikimedia Commons" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/18px-Commons-logo.svg.png" decoding="async" width="18" height="24" class="mw-file-element" data-file-width="1024" data-file-height="1376"> </noscript><span class="lazy-image-placeholder" style="width: 18px;height: 24px;" data-src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/18px-Commons-logo.svg.png" data-alt="Collabora a Wikimedia Commons" data-width="18" data-height="24" data-srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/27px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/36px-Commons-logo.svg.png 2x" data-class="mw-file-element"> </span></a></span> <span class="plainlinks"><a class="external text" href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://commons.wikimedia.org/wiki/?uselang%3Dit">Wikimedia Commons</a></span> contiene immagini o altri file sul <b><span class="plainlinks"><a class="external text" href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://commons.wikimedia.org/wiki/Category:Resource_Description_Framework?uselang%3Dit">Resource Description Framework</a></span></b></li> </ul> </section> <div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(9)"> <span class="indicator mf-icon mf-icon-expand mf-icon--small"></span> <h2 id="Collegamenti_esterni">Collegamenti esterni</h2><span class="mw-editsection"> <a role="button" href="https://it-m-wikipedia-org.translate.goog/w/index.php?title=Resource_Description_Framework&action=edit&section=11&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Modifica la sezione Collegamenti esterni" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>modifica</span> </a> </span> </div> <section class="mf-section-9 collapsible-block" id="mf-section-9"> <ul> <li class="mw-empty-elt"></li> <li><cite id="CITEREFSapere.it" class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://www.sapere.it/enciclopedia/RDF.html"><span style="font-style:italic;">RDF</span></a>, su <span style="font-style:italic;">sapere.it</span>, <a href="https://it-m-wikipedia-org.translate.goog/wiki/De_Agostini?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="De Agostini">De Agostini</a>.</cite> <span class="mw-valign-text-top noprint" typeof="mw:File/Frameless"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://www.wikidata.org/wiki/Q54872%23P6706" title="Modifica su Wikidata"> <noscript> <img alt="Modifica su Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/10px-Blue_pencil.svg.png" decoding="async" width="10" height="10" class="mw-file-element" data-file-width="600" data-file-height="600"> </noscript><span class="lazy-image-placeholder" style="width: 10px;height: 10px;" data-src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/10px-Blue_pencil.svg.png" data-alt="Modifica su Wikidata" data-width="10" data-height="10" data-srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/15px-Blue_pencil.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/20px-Blue_pencil.svg.png 2x" data-class="mw-file-element"> </span></a></span></li> <li><cite id="CITEREFOpen_Library" class="citation web" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <a rel="nofollow" class="external text" href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://openlibrary.org/subjects/rdf_(document_markup_language)"><span style="font-style:italic;">Opere riguardanti RDF (Document markup language)</span></a> / <a rel="nofollow" class="external text" href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://openlibrary.org/subjects/rdf"><span style="font-style:italic;">RDF</span></a> / <a rel="nofollow" class="external text" href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://openlibrary.org/subjects/rdf_(resource_description_framework)"><span style="font-style:italic;">RDF (Resource Description Framework)</span></a>, su <span style="font-style:italic;"><a href="https://it-m-wikipedia-org.translate.goog/wiki/Open_Library?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="mw-redirect" title="Open Library">Open Library</a></span>, <a href="https://it-m-wikipedia-org.translate.goog/wiki/Internet_Archive?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Internet Archive">Internet Archive</a>.</cite> <span class="mw-valign-text-top noprint" typeof="mw:File/Frameless"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://www.wikidata.org/wiki/Q54872%23P3847" title="Modifica su Wikidata"> <noscript> <img alt="Modifica su Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/10px-Blue_pencil.svg.png" decoding="async" width="10" height="10" class="mw-file-element" data-file-width="600" data-file-height="600"> </noscript><span class="lazy-image-placeholder" style="width: 10px;height: 10px;" data-src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/10px-Blue_pencil.svg.png" data-alt="Modifica su Wikidata" data-width="10" data-height="10" data-srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/15px-Blue_pencil.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/20px-Blue_pencil.svg.png 2x" data-class="mw-file-element"> </span></a></span></li> <li><cite id="CITEREFFOLDOC" class="citation testo" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) Denis Howe, <span style="font-style:italic;"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://foldoc.org/Resource%252BDescription%252BFramework" class="extiw" title="foldoc:Resource+Description+Framework">Resource Description Framework</a></span>, in <span style="font-style:italic;"><a href="https://it-m-wikipedia-org.translate.goog/wiki/Free_On-line_Dictionary_of_Computing?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Free On-line Dictionary of Computing">Free On-line Dictionary of Computing</a></span>.</cite> Disponibile con licenza <a href="https://it-m-wikipedia-org.translate.goog/wiki/GNU_Free_Documentation_License?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="GNU Free Documentation License">GFDL</a></li> <li><cite class="citation web" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <a rel="nofollow" class="external text" href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://www.w3.org/TR/rdf-schema"><span style="font-style:italic;">RDF Vocabulary Description Language 1.0: RDF Schema</span></a>, su <span style="font-style:italic;">w3.org</span>, W3C. <small>URL consultato il 07-02-2010</small>.</cite></li> <li><cite class="citation web" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <a rel="nofollow" class="external text" href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://www.w3.org/TR/REC-rdf-syntax"><span style="font-style:italic;">RDF/XML Syntax Specification (Revised)</span></a>, su <span style="font-style:italic;">w3.org</span>, W3C. <small>URL consultato il 07-02-2010</small>.</cite></li> <li><cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=http://web.dfc.unibo.it/buzzetti/IUcorso2006-07/IUmdidattici2006-07.html"><span style="font-style:italic;">Tutorial di Francesca Tomasi</span></a>, su <span style="font-style:italic;">web.dfc.unibo.it</span>, Università di Bologna. <small>URL consultato il 07-02-2010</small>.</cite></li> </ul> <style data-mw-deduplicate="TemplateStyles:r141815314">.mw-parser-output .navbox{border:1px solid 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rel="nofollow" class="external text" href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=http://olduli.nli.org.il/F/?func%3Dfind-b%26local_base%3DNLX10%26find_code%3DUID%26request%3D987007532775605171">987007532775605171</a></span></td> </tr> </tbody> </table> <div class="noprint" style="width:100%; padding: 3px 0; display: flex; flex-wrap: wrap; row-gap: 4px; column-gap: 8px; box-sizing: border-box;"> <div style="flex-grow: 1"> <style data-mw-deduplicate="TemplateStyles:r140555418">.mw-parser-output .itwiki-template-occhiello{width:100%;line-height:25px;border:1px solid #CCF;background-color:#F0EEFF;box-sizing:border-box}.mw-parser-output .itwiki-template-occhiello-progetto{background-color:#FAFAFA}@media screen{html.skin-theme-clientpref-night .mw-parser-output .itwiki-template-occhiello{background-color:#202122;border-color:#54595D}html.skin-theme-clientpref-night .mw-parser-output .itwiki-template-occhiello-progetto{background-color:#282929}}@media screen and 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href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://bg.wikipedia.org/wiki/Resource_Description_Framework" title="Resource Description Framework - bulgaro" lang="bg" hreflang="bg" data-title="Resource Description Framework" data-language-autonym="Български" data-language-local-name="bulgaro" class="interlanguage-link-target"><span>Български</span></a></li> <li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://ca.wikipedia.org/wiki/Resource_Description_Framework" title="Resource Description Framework - catalano" lang="ca" hreflang="ca" data-title="Resource Description Framework" data-language-autonym="Català" data-language-local-name="catalano" class="interlanguage-link-target"><span>Català</span></a></li> <li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://ckb.wikipedia.org/wiki/%25D8%25A6%25D8%25A7%25DA%2595_%25D8%25AF%25DB%258C_%25D8%25A6%25DB%258E%25D9%2581" title="ئاڕ دی ئێف - curdo centrale" lang="ckb" hreflang="ckb" data-title="ئاڕ دی ئێف" data-language-autonym="کوردی" data-language-local-name="curdo centrale" class="interlanguage-link-target"><span>کوردی</span></a></li> <li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://cs.wikipedia.org/wiki/Resource_Description_Framework" title="Resource Description Framework - ceco" lang="cs" hreflang="cs" data-title="Resource Description Framework" data-language-autonym="Čeština" data-language-local-name="ceco" class="interlanguage-link-target"><span>Čeština</span></a></li> <li class="interlanguage-link interwiki-da mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://da.wikipedia.org/wiki/Resource_Description_Framework" title="Resource Description Framework - danese" lang="da" hreflang="da" data-title="Resource Description Framework" data-language-autonym="Dansk" data-language-local-name="danese" class="interlanguage-link-target"><span>Dansk</span></a></li> <li class="interlanguage-link interwiki-de mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://de.wikipedia.org/wiki/Resource_Description_Framework" title="Resource Description Framework - tedesco" lang="de" hreflang="de" data-title="Resource Description Framework" data-language-autonym="Deutsch" data-language-local-name="tedesco" class="interlanguage-link-target"><span>Deutsch</span></a></li> <li class="interlanguage-link interwiki-en mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://en.wikipedia.org/wiki/Resource_Description_Framework" title="Resource Description Framework - inglese" lang="en" hreflang="en" data-title="Resource Description Framework" data-language-autonym="English" data-language-local-name="inglese" class="interlanguage-link-target"><span>English</span></a></li> <li class="interlanguage-link interwiki-es mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://es.wikipedia.org/wiki/Resource_Description_Framework" title="Resource Description Framework - spagnolo" lang="es" hreflang="es" data-title="Resource Description Framework" data-language-autonym="Español" data-language-local-name="spagnolo" class="interlanguage-link-target"><span>Español</span></a></li> <li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://eu.wikipedia.org/wiki/RDF" title="RDF - basco" lang="eu" hreflang="eu" data-title="RDF" data-language-autonym="Euskara" data-language-local-name="basco" class="interlanguage-link-target"><span>Euskara</span></a></li> <li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://fa.wikipedia.org/wiki/%25DA%2586%25D8%25A7%25D8%25B1%25DA%2586%25D9%2588%25D8%25A8_%25D8%25AA%25D9%2588%25D8%25B5%25DB%258C%25D9%2581_%25D9%2585%25D9%2586%25D8%25A8%25D8%25B9" title="چارچوب توصیف منبع - persiano" lang="fa" hreflang="fa" data-title="چارچوب توصیف منبع" data-language-autonym="فارسی" data-language-local-name="persiano" class="interlanguage-link-target"><span>فارسی</span></a></li> <li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://fi.wikipedia.org/wiki/RDF" title="RDF - finlandese" lang="fi" hreflang="fi" data-title="RDF" data-language-autonym="Suomi" data-language-local-name="finlandese" class="interlanguage-link-target"><span>Suomi</span></a></li> <li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://fr.wikipedia.org/wiki/Resource_Description_Framework" title="Resource Description Framework - francese" lang="fr" hreflang="fr" data-title="Resource Description Framework" data-language-autonym="Français" data-language-local-name="francese" class="interlanguage-link-target"><span>Français</span></a></li> <li class="interlanguage-link interwiki-he mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://he.wikipedia.org/wiki/Resource_Description_Framework" title="Resource Description Framework - ebraico" lang="he" hreflang="he" data-title="Resource Description Framework" data-language-autonym="עברית" data-language-local-name="ebraico" class="interlanguage-link-target"><span>עברית</span></a></li> <li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://hu.wikipedia.org/wiki/Resource_Description_Framework" title="Resource Description Framework - ungherese" lang="hu" hreflang="hu" data-title="Resource Description Framework" data-language-autonym="Magyar" data-language-local-name="ungherese" class="interlanguage-link-target"><span>Magyar</span></a></li> <li class="interlanguage-link interwiki-is mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://is.wikipedia.org/wiki/RDF" title="RDF - islandese" lang="is" hreflang="is" data-title="RDF" data-language-autonym="Íslenska" data-language-local-name="islandese" class="interlanguage-link-target"><span>Íslenska</span></a></li> <li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://ja.wikipedia.org/wiki/Resource_Description_Framework" title="Resource Description Framework - giapponese" lang="ja" hreflang="ja" data-title="Resource Description Framework" data-language-autonym="日本語" data-language-local-name="giapponese" class="interlanguage-link-target"><span>日本語</span></a></li> <li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://ko.wikipedia.org/wiki/%25EC%259E%2590%25EC%259B%2590_%25EA%25B8%25B0%25EC%2588%25A0_%25ED%2594%2584%25EB%25A0%2588%25EC%259E%2584%25EC%259B%258C%25ED%2581%25AC" title="자원 기술 프레임워크 - coreano" lang="ko" hreflang="ko" data-title="자원 기술 프레임워크" data-language-autonym="한국어" data-language-local-name="coreano" class="interlanguage-link-target"><span>한국어</span></a></li> <li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://lv.wikipedia.org/wiki/Resursu_aprakst%25C4%25AB%25C5%25A1anas_ietvars" title="Resursu aprakstīšanas ietvars - lettone" lang="lv" hreflang="lv" data-title="Resursu aprakstīšanas ietvars" data-language-autonym="Latviešu" data-language-local-name="lettone" class="interlanguage-link-target"><span>Latviešu</span></a></li> <li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://nl.wikipedia.org/wiki/Resource_Description_Framework" title="Resource Description Framework - olandese" lang="nl" hreflang="nl" data-title="Resource Description Framework" data-language-autonym="Nederlands" data-language-local-name="olandese" class="interlanguage-link-target"><span>Nederlands</span></a></li> <li class="interlanguage-link interwiki-no mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://no.wikipedia.org/wiki/Resource_Description_Framework" title="Resource Description Framework - norvegese bokmål" lang="nb" hreflang="nb" data-title="Resource Description Framework" data-language-autonym="Norsk bokmål" data-language-local-name="norvegese bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li> <li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://pl.wikipedia.org/wiki/Resource_Description_Framework" title="Resource Description Framework - polacco" lang="pl" hreflang="pl" data-title="Resource Description Framework" data-language-autonym="Polski" data-language-local-name="polacco" class="interlanguage-link-target"><span>Polski</span></a></li> <li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://pt.wikipedia.org/wiki/Resource_Description_Framework" title="Resource Description Framework - portoghese" lang="pt" hreflang="pt" data-title="Resource Description Framework" data-language-autonym="Português" data-language-local-name="portoghese" class="interlanguage-link-target"><span>Português</span></a></li> <li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://ro.wikipedia.org/wiki/Resource_Description_Framework" title="Resource Description Framework - rumeno" lang="ro" hreflang="ro" data-title="Resource Description Framework" data-language-autonym="Română" data-language-local-name="rumeno" class="interlanguage-link-target"><span>Română</span></a></li> <li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://ru.wikipedia.org/wiki/Resource_Description_Framework" title="Resource Description Framework - russo" lang="ru" hreflang="ru" data-title="Resource Description Framework" data-language-autonym="Русский" data-language-local-name="russo" class="interlanguage-link-target"><span>Русский</span></a></li> <li class="interlanguage-link interwiki-scn mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://scn.wikipedia.org/wiki/Resource_Description_Framework" title="Resource Description Framework - siciliano" lang="scn" hreflang="scn" data-title="Resource Description Framework" data-language-autonym="Sicilianu" data-language-local-name="siciliano" class="interlanguage-link-target"><span>Sicilianu</span></a></li> <li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://sk.wikipedia.org/wiki/Resource_Description_Framework" title="Resource Description Framework - slovacco" lang="sk" hreflang="sk" data-title="Resource Description Framework" data-language-autonym="Slovenčina" data-language-local-name="slovacco" class="interlanguage-link-target"><span>Slovenčina</span></a></li> <li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://sr.wikipedia.org/wiki/Resource_description_framework" title="Resource description framework - serbo" lang="sr" hreflang="sr" data-title="Resource description framework" data-language-autonym="Српски / srpski" data-language-local-name="serbo" class="interlanguage-link-target"><span>Српски / srpski</span></a></li> <li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://sv.wikipedia.org/wiki/Resource_Description_Framework" title="Resource Description Framework - svedese" lang="sv" hreflang="sv" data-title="Resource Description Framework" data-language-autonym="Svenska" data-language-local-name="svedese" class="interlanguage-link-target"><span>Svenska</span></a></li> <li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://ta.wikipedia.org/wiki/%25E0%25AE%25B5%25E0%25AE%25B3_%25E0%25AE%25B5%25E0%25AE%25BF%25E0%25AE%25AA%25E0%25AE%25B0%25E0%25AE%25BF%25E0%25AE%25AA%25E0%25AF%258D%25E0%25AE%25AA%25E0%25AF%2581%25E0%25AE%259A%25E0%25AF%258D_%25E0%25AE%259A%25E0%25AE%259F%25E0%25AF%258D%25E0%25AE%259F%25E0%25AE%2595%25E0%25AE%25AE%25E0%25AF%258D" title="வள விபரிப்புச் சட்டகம் - tamil" lang="ta" hreflang="ta" data-title="வள விபரிப்புச் சட்டகம்" data-language-autonym="தமிழ்" data-language-local-name="tamil" class="interlanguage-link-target"><span>தமிழ்</span></a></li> <li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://tr.wikipedia.org/wiki/Kaynak_Tan%25C4%25B1mlama_%25C3%2587er%25C3%25A7evesi" title="Kaynak Tanımlama Çerçevesi - turco" lang="tr" hreflang="tr" data-title="Kaynak Tanımlama Çerçevesi" data-language-autonym="Türkçe" data-language-local-name="turco" class="interlanguage-link-target"><span>Türkçe</span></a></li> <li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://uk.wikipedia.org/wiki/Resource_Description_Framework" title="Resource Description Framework - ucraino" lang="uk" hreflang="uk" data-title="Resource Description Framework" data-language-autonym="Українська" data-language-local-name="ucraino" class="interlanguage-link-target"><span>Українська</span></a></li> <li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://vi.wikipedia.org/wiki/RDF" title="RDF - vietnamita" lang="vi" hreflang="vi" data-title="RDF" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamita" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li> <li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://zh.wikipedia.org/wiki/%25E8%25B3%2587%25E6%25BA%2590%25E6%258F%258F%25E8%25BF%25B0%25E6%25A1%2586%25E6%259E%25B6" title="資源描述框架 - cinese" lang="zh" hreflang="zh" data-title="資源描述框架" data-language-autonym="中文" data-language-local-name="cinese" class="interlanguage-link-target"><span>中文</span></a></li> <li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://zh-yue.wikipedia.org/wiki/RDF" title="RDF - cantonese" lang="yue" hreflang="yue" data-title="RDF" data-language-autonym="粵語" data-language-local-name="cantonese" class="interlanguage-link-target"><span>粵語</span></a></li> </ul> </section> </div> <div class="minerva-footer-logo"> <img src="/static/images/mobile/copyright/wikipedia-wordmark-en.svg" alt="Wikipedia" width="120" height="18" style="width: 7.5em; height: 1.125em;"> </div> <ul id="footer-info" class="footer-info hlist 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