Members of the Web Services-Interoperability Organization (WS-I) Basic
Profile Working Group are currently working on Basic Profile 1.2 and
Basic Profile 2.0. Updated drafts have been published for both
specifications. (1) The latest "Basic Profile Version 1.2" Working
Group Approval Draft defines a set of non-proprietary Web services
specifications, along with clarifications, refinements, interpretations
and amplifications of those specifications which promote interoperability.
This Profile is derived from the Basic Profile 1.1 by incorporating any
errata to date and including those requirements related to the
serialization of envelopes and their representation in messages from
the Simple SOAP Binding Profile 1.0. This Profile is NOT intended to
be composed with the Simple SOAP Binding Profile 1.0. The Attachments
Profile 1.0 adds support for SOAP with Attachments, and is intended to
be used in combination with this Profile. There are a few requirements
in the Basic Profile 1.2 that may present compatibility issues with
clients, services and their artifacts that have been engineered for
Basic Profile 1.1 conformance. However, in general, the Basic Profile
WG members have tried to preserve as much forwards and backwards
compatibility with the Basic Profile 1.1 as possible so as not to
disenfranchise clients, services and their artifacts that have been
deployed in conformance with the Basic Profile 1.1. (2) The "Basic
Profile Version 2.0" (Working Group Draft) is the first version of
the WS-I Basic Profile that changes the version of SOAP in the profile
scope from SOAP 1.1 to the W3C SOAP 1.2 Recommendation. As such,
clients, servers and the artifacts that comprise a Basic Profile 1.0,
1.1 or 1.2 conformant application are inherently incompatible with an
application that is conformant with the Basic Profile 2.0. However, in
general, the Basic Profile WG members have tried to preserve in the
Basic Profile 2.0 as much consistency with the guidance and constraints
of the Basic Profile 1.0, 1.1 and 1.2 as possible. This has been in
part facilitated by the fact that the WG tried to remain consistent
in the guidance and constraints of the original Basic Profile with the
decisions that were being made in the context of the W3C XML Protocols
WG as they were concurrently working on the SOAP 1.2 specificatons. For
the most part, issues that were resolved in the context of the
development of the Basic Profile 1.0, 1.1 and 1.2 were not revisited. More Information
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