A persistent uniform resource locator (PURL) is a Uniform Resource Locator (URL) (i.e. location-based Uniform Resource Identifier or URI) that does not directly describe the location of the resource to be retrieved but instead describes an intermediate (more persistent) location which, when retrieved, results in redirection (e.g. via a 302 HTTP status code) to the current location of the final resource.

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dbpprop:abstract
  • A persistent uniform resource locator (PURL) is a Uniform Resource Locator (URL) (i.e. location-based Uniform Resource Identifier or URI) that does not directly describe the location of the resource to be retrieved but instead describes an intermediate (more persistent) location which, when retrieved, results in redirection (e.g. via a 302 HTTP status code) to the current location of the final resource. PURLs are an interim measure — while Uniform Resource Names (URNs) are being mainstreamed — to solve the problem of transitory URIs in location-based URI schemes like HTTP. Persistence problems are caused by the practical impossibility of every user having their own domain name, and the inconvenience and money involved in re-registering domain names, that results in WWW authors putting their documents in rather arbitrary locations of questionable persistence (i.e. wherever they can get the WWW space). Existing official PURLs (on Purl. Org) will probably be mapped to a URN namespace at a later date. Technically the string resolution on PURL is like SEF URL resolution.
  • Ein Persistent Uniform Resource Locator oder PURL ist ein Identifikator in Form einer URL, die nicht direkt auf eine Internet-Ressource verweist, sondern auf einen Linkresolver, der die tatsächliche, aktuelle URL der Ressource zurückgibt. Aus Benutzersicht entspricht ein PURL somit einer HTTP-Weiterleitung. PURLs sind – wie URNs – ein Weg, konstante, persistente (= bestehen bleibende) Verweise auf Inhalte von Webseiten bereitzustellen, während die tatsächlichen Adressen der Seiten variabel bleiben können. PURL wird von OCLC verwaltet. Alternativen zu PURL sind beispielsweise Digital Object Identifier, das Handle-System und Uniform Resource Names.
  • PURL (Persistent Uniform Resource Locators) er en tilnærming til URN som er utviklet av Online Computer Library Center (OCLC). Problemet PURL adresserer er at de URLer som brukes i nettbaserte dokumenter ikke er stabile eller varige. Det er ikke uvanlig at URLer forandrer seg. F. eks når en bedrift bytter publiseringsløsning, så har gjerne den nye publiseringsløsningen en annen måte å bygge opp URLer på enn den gamle hadde, eller at dokumentet flyttes til et annet domene/annen plass i filsystemet etc. PURL er et forsøk på en løsning på dette problemet, ved å introdusere en virtuell URL, som fungerer som et mellomledd før den faktiske URLen.
  • PURL (англ. Persistent Uniform Resource Locator) — постоянный единообразный локатор (определитель местонахождения) ресурса. На английский манер произносится как [пё́рл], русское произношение ещё не устоялось, вероятно это будет [пу-эр-э́л] или [пурла́]. Формат PURL основан на URL — стандартизированном способе записи адреса ресурса в сети Интернет. PURL — это постоянный локатор ресурса, который (в отличие от обычного URL) не может измениться.
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  • knitting
  • persistent uniform resource locators
  • the "purl" stitch in knitting
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rdfs:comment
  • A persistent uniform resource locator (PURL) is a Uniform Resource Locator (URL) (i.e. location-based Uniform Resource Identifier or URI) that does not directly describe the location of the resource to be retrieved but instead describes an intermediate (more persistent) location which, when retrieved, results in redirection (e.g. via a 302 HTTP status code) to the current location of the final resource.
  • Ein Persistent Uniform Resource Locator oder PURL ist ein Identifikator in Form einer URL, die nicht direkt auf eine Internet-Ressource verweist, sondern auf einen Linkresolver, der die tatsächliche, aktuelle URL der Ressource zurückgibt. Aus Benutzersicht entspricht ein PURL somit einer HTTP-Weiterleitung.
  • PURL (Persistent Uniform Resource Locators) er en tilnærming til URN som er utviklet av Online Computer Library Center (OCLC). Problemet PURL adresserer er at de URLer som brukes i nettbaserte dokumenter ikke er stabile eller varige. Det er ikke uvanlig at URLer forandrer seg. F.
  • PURL (англ. Persistent Uniform Resource Locator) — постоянный единообразный локатор (определитель местонахождения) ресурса. На английский манер произносится как [пё́рл], русское произношение ещё не устоялось, вероятно это будет [пу-эр-э́л] или [пурла́].
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  • Persistent Uniform Resource Locator
  • Persistent Uniform Resource Locator
  • Persistent Uniform Resource Locator
  • PURL
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