[Asdf] proposed charter revision

[Michael Richardson <[e-mail]>]

https://github.com/ietf-wg-asdf/asdf-working-group-notes/pull/1
contains a proposed revision to the charter.

The resulting charter would look like:


Background
----------

In 2019 One Data Model (OneDM) was started to bring several IoT SDOs and IoT
device and platform vendors together under a broad, multi-party liaison
agreement, with a goal of arriving at a common set of data and interaction
models that describe IoT devices.  After some exploratory work this resulted
in a successful proposal to create the ASDF WG. 

As a common language for writing down these models, the Semantic Definition
Format went through the IETF process, producing (draft-ietf-asdf-sdf).  This
initial SDF Base document has now reached WG Consensus, to be published.  SDF
represents these models in JSON, enabling re-use of specification formats
such as CDDL (RFC8610) and the formats proposed at json-schema.org and their
tooling, for describing both the SDF format itself and the structure of the
data to be modelled in SDF. 

SDF does not deal directly with serialization at all, modelling only the
structure and semantics of the data being interchanged, hence leaving data
serialization (and RPC semantics) to other standards, most likely defined by
existing IoT SDOs. 

The ASDF Working Group
----------------------

The ASDF has developped SDF into a standards-track specification for thing
interaction and data modelling.  In the process of developing this
specification, further functional requirements have emerged that can be
addressed as extensions to the base SDF specification. 

The ASDF WG will work with experts from OneDM and its contributing
organizations to extend SDF to cover aspects such as digital twin, mapping to
other IoT SDOs, and gateway interactions translations between IP and other
transports. 

As work evolves, it will interact with the IRTF formal description techniques
(FDT) Research Group.  ASDF will work with Thing-to-Thing Research Group
(T2TRG) and its WISHI (Work on IoT Semantic/Hypermedia Interoperability,
http://wishi.space) program to engage researchers and other SDOs in this
space, such as W3C Web of Things, which is working on Thing Models and
related specifications. 




-- 
Michael Richardson <[e-mail]>   . o O ( IPv6 IøT consulting )
           Sandelman Software Works Inc, Ottawa and Worldwide