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Typus
Verschleierung
Bearbeiter
Graf Isolan
Gesichtet
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Untersuchte Arbeit:
Seite: 15, Zeilen: 1-17
Quelle: Zeeb et al 2007
Seite(n): III-2 (Internetversion), Zeilen: li.Sp. 13-22, 41-48, 51-52, 54-57
WS-Discovery

The WS-Discovery is a discovery protocol based on IP multicast for enabling services to be discovered automatically. Discovery introduces three different endpoint types: target service, client and discovery proxy. Target Services are Web Services offering themselves to the network, Clients may search for target services and discover them dynamically and Discovery Proxy is an endpoint enabling discovery in spanned networks since simple discovery is limited to a multicast group and hence to local managed networks only.

WS-MetadataExchange / WS-Transfer

WS-MetadataExchange is a specification that defines data types and operations to retrieve metadata associated with an endpoint. This metadata describes what other endpoints need to know to interact with the described endpoint, and defines the MetadataSection that divides the metadata into separate units of metadata with a dialect specifying its type. WS-Transfer is used to retrieve the metadata, which is structured as specifified in WS-MetadataExchange. MetadataExchange. There is a slight functional difference in WSMetadataExchange and WS-Transfer for retrieval of metadata. WS-MetadataExchange defines operations to retrieve all or parts of the metadata of an endpoint. WS-Transfer only can be used to retrieve all metadata of an endpoint.

WS-Discovery

WS-Discovery is a discovery protocol based on IP multicast for enabling services to be discovered automatically. Discovery introduces three different endpoint types: target service, client and discovery proxy. Target services are Web services offering themselves to the network. Clients may search for target services and discover them dynamically. Discovery proxy is an endpoint enabling discovery in spanned networks since simple discovery is limited to a multicast group and hence to local managed networks only.

[...]

WS-MetadataExchange / WS-Transfer

WS-MetadataExchange is a specification that defines data types and operations to retrieve metadata associated with an endpoint. This metadata describes what other endpoints need to know to interact with the described endpoint. WS-MetadataExchange defines the MetadataSection that divides the metadata into separate units of metadata with a dialect specifying its type.

Until the latest version of DPWS only WS-MetadataExchange was used for service and device description and retrieval. In the latest DPWS version of February 2006 WS-Transfer is used to retrieve the metadata. The structure of the metadata is still as specified in WS-MetadataExchange. The main difference is that WS-MetadataExchange defined operations to retrieve all or parts of the metadata of an endpoint, whereas WS-Transfer only can be used to retrieve all metadata of an endpoint.

Anmerkungen

Ohne Hinweis auf eine Übernahme.

Sichter
(Graf Isolan), Hindemith

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