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The Devices Profile for Web Services (DPWS) defines a minimal set of implementation constraints to enable secure Web Service messaging, discovery, description, and eventing on resource-constrained devices. Its objectives are similar to those of Universal Plug and Play (UPnP) but, in addition, DPWS is fully aligned with Web Services technology and includes numerous extension points allowing for seamless integration of device-provided services in enterprise-wide application scenarios. == DPWS standardization == The DPWS specification was initially published in May 2004 and was submitted for standardization to OASIS in July 2008. DPWS 1.1 was approved as OASIS Standard together with WS-Discovery 1.1 and SOAP-over-UDP 1.1 on June 30 2009. DPWS defines an architecture in which devices run two types of services: ''hosting services'' and ''hosted services''. Hosting services are directly associated to a device, and play an important part in the device discovery process. Hosted services are mostly functional and depend on their hosting device for discovery. In addition to these hosted services, DPWS specifies a set of built-in services: * Discovery services: used by a device connected to a network to advertise itself and to discover other devices. Support of discovery has led some to dub DPWS as "the USB for Ethernet." * Metadata exchange services: provide dynamic access to a device’s hosted services and to their metadata. * Publish/subscribe eventing services: allowing other devices to subscribe to asynchronous event messages produced by a given service. DPWS builds on the following core Web Services standards: WSDL 1.1, XML Schema, SOAP 1.2, WS-Addressing, and further comprises WS-MetadataExchange, WS-Transfer, WS-Policy, WS-Security, WS-Discovery and WS-Eventing. Microsoft's Windows Vista and Windows Embedded CE6R2 platforms natively integrate DPWS with a stack called WSDAPI, included as part of the Windows Rally technologies. Support for OSGi is on the way. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Devices Profile for Web Services」の詳細全文を読む スポンサード リンク
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