From: The IESG <iesg-secretary@ietf.org>
To: IETF-Announce <ietf-announce@ietf.org>
Cc: asdf@ietf.org
Reply-To: iesg@ietf.org
Subject: WG Review: A Semantic Definition Format for Data and Interactions of Things (asdf)
The A Semantic Definition Format for Data and Interactions of Things (asdf)
WG in the Applications and Real-Time Area of the IETF is undergoing
rechartering. The IESG has not made any determination yet. The following
draft charter was submitted, and is provided for informational purposes only.
Please send your comments to the IESG mailing list (iesg@ietf.org) by
2024-03-28.
A Semantic Definition Format for Data and Interactions of Things (asdf)
-----------------------------------------------------------------------
Current status: Active WG
Chairs:
Michael Richardson <mcr+ietf@sandelman.ca>
Niklas Widell <niklas.widell@ericsson.com>
Assigned Area Director:
Francesca Palombini <francesca.palombini@ericsson.com>
Applications and Real-Time Area Directors:
Murray Kucherawy <superuser@gmail.com>
Orie Steele <orie@transmute.industries>
Mailing list:
Address: asdf@ietf.org
To subscribe: https://www.ietf.org/mailman/listinfo/asdf
Archive: https://mailarchive.ietf.org/arch/browse/asdf/
Group page: https://datatracker.ietf.org/group/asdf/
Charter: https://datatracker.ietf.org/doc/charter-ietf-asdf/
## 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
SDF Base specification 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 developed 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 develop these extensions by working 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 translating
between IP and other transports.
As work evolves, ASDF will observe and may want to interact with IRTF
Research Groups such as the Usable Formal Methods Research Group (UFMRG).
ASDF will work with Thing-to-Thing Research Group (T2TRG) and its WISHI (Work
on IoT Semantic/Hypermedia Interoperability, https://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.
Milestones:
WG action announcement
WG Action Announcement
From: The IESG <iesg-secretary@ietf.org>
To: IETF-Announce <ietf-announce@ietf.org>
Cc: The IESG <iesg@ietf.org>,
asdf-chairs@ietf.org,
asdf@ietf.org
Subject: WG Action: Rechartered A Semantic Definition Format for Data and Interactions of Things (asdf)
The A Semantic Definition Format for Data and Interactions of Things (asdf)
WG in the Applications and Real-Time Area of the IETF has been rechartered.
For additional information, please contact the Area Directors or the WG
Chairs.
A Semantic Definition Format for Data and Interactions of Things (asdf)
-----------------------------------------------------------------------
Current status: Active WG
Chairs:
Michael Richardson <mcr+ietf@sandelman.ca>
Niklas Widell <niklas.widell@ericsson.com>
Assigned Area Director:
Francesca Palombini <francesca.palombini@ericsson.com>
Applications and Real-Time Area Directors:
Murray Kucherawy <superuser@gmail.com>
Orie Steele <orie@transmute.industries>
Mailing list:
Address: asdf@ietf.org
To subscribe: https://www.ietf.org/mailman/listinfo/asdf
Archive: https://mailarchive.ietf.org/arch/browse/asdf/
Group page: https://datatracker.ietf.org/group/asdf/
Charter: https://datatracker.ietf.org/doc/charter-ietf-asdf/
## 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
SDF Base specification 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 developed 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 develop these extensions by working 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 translating
between IP and other transports.
As work evolves, ASDF will observe and may want to interact with IRTF
Research Groups such as the Usable Formal Methods Research Group (UFMRG).
ASDF will work with Thing-to-Thing Research Group (T2TRG) and its WISHI (Work
on IoT Semantic/Hypermedia Interoperability, https://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.
Milestones: