Issue 025 - DPWS - Add a description language for relating devicetypes and service types

[Ram Jeyaraman <Ram.Jeyaraman@microsoft.com>]

This issue is assigned the number 025. For further discussions on this issue, please refer to this issue number or use this thread.

-----Original Message-----
From: Antoine Mensch [mailto:antoine.mensch@odonata.fr]
Sent: Tuesday, September 16, 2008 4:35 PM
To: Ram Jeyaraman
Subject: NEW Issue - Add a description language for relating device types and service types

Please defer discussions on this issue until a time this issue is
accepted and is assigned a number.

Document: DPWS
Location (defaults to line number): Global
Owner: Antoine Mensch

Description:
DPWS is lacking a description mechanism and language to describe the
relationship between a device type and the hosted services hosted by a
device implementing this type. For instance, a printer conformant to a
standardized printer type should always expose the same set of mandatory
hosted services, plus maybe a set of standard and non-standard optional
hosted services. There is no standard language (similar in purpose to
the abstract part of WSDL) to describe this relationship. WSDL itself
does not seem applicable to a device. Today, the solution is to rely on
out-of-band information to establish the link between an interface
exposed by a hosted service (e.g. a PrintService interface/port type)
and the device type that must be used in the Probe request to retrieve
the appropriate device hosting the hosted service.

Proposed resolution:
To be defined if the principle is accepted