Semantic Definition Format (SDF) for Data and Interactions of Things
draft-ietf-asdf-sdf-03

Document Type Active Internet-Draft (asdf WG)
Authors Michael Koster  , Carsten Bormann 
Last updated 2021-02-22
Replaces draft-onedm-t2trg-sdf
Stream IETF
Intended RFC status Proposed Standard
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T2TRG                                                     M. Koster, Ed.
Internet-Draft                                             Dogtiger Labs
Intended status: Standards Track                         C. Bormann, Ed.
Expires: 26 August 2021                           Universit├Ąt Bremen TZI
                                                        22 February 2021

  Semantic Definition Format (SDF) for Data and Interactions of Things
                         draft-ietf-asdf-sdf-03

Abstract

   The Semantic Definition Format (SDF) is a format for domain experts
   to use in the creation and maintenance of data and interaction models
   in the Internet of Things.  It was created as a common language for
   use in the development of the One Data Model liaison organization
   (OneDM) definitions.  Tools convert this format to database formats
   and other serializations as needed.

   An SDF specification describes definitions of SDF Objects and their
   associated interactions (Events, Actions, Properties), as well as the
   Data types for the information exchanged in those interactions.

   A JSON format representation of SDF 1.0 was defined in the previous
   (-00) version of this document.  SDF 1.1 is expected to be defined in
   a future version; the present document is a _candidate implementation
   draft_ for SDF 1.1.  If the ASDF WG reaches consensus on this
   candidate, the next version will be SDF 1.1, an SDF implementation
   draft.

Contributing

   Recent versions of this document are available at its GitHub
   repository https://github.com/ietf-wg-asdf/SDF (https://github.com/
   ietf-wg-asdf/SDF) -- this also provides an issue tracker as well as a
   way to supply "pull requests".

   General discussion of this SDF Internet-Draft happens on the mailing
   list of the IETF ASDF Working Group, asdf@ietf.org (subscribe at
   https://www.ietf.org/mailman/listinfo/asdf
   (https://www.ietf.org/mailman/listinfo/asdf)).

   The IETF Note Well applies (https://www.ietf.org/about/note-well/
   (https://www.ietf.org/about/note-well/)).

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Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on 26 August 2021.

Copyright Notice

   Copyright (c) 2021 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents (https://trustee.ietf.org/
   license-info) in effect on the date of publication of this document.
   Please review these documents carefully, as they describe your rights
   and restrictions with respect to this document.  Code Components
   extracted from this document must include Simplified BSD License text
   as described in Section 4.e of the Trust Legal Provisions and are
   provided without warranty as described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Terminology and Conventions . . . . . . . . . . . . . . .   4
   2.  Overview  . . . . . . . . . . . . . . . . . . . . . . . . . .   6
     2.1.  Example Definition  . . . . . . . . . . . . . . . . . . .   6
     2.2.  Elements of an SDF model  . . . . . . . . . . . . . . . .   7
       2.2.1.  sdfObject . . . . . . . . . . . . . . . . . . . . . .   8
       2.2.2.  sdfProperty . . . . . . . . . . . . . . . . . . . . .   8
       2.2.3.  sdfAction . . . . . . . . . . . . . . . . . . . . . .   9
       2.2.4.  sdfEvent  . . . . . . . . . . . . . . . . . . . . . .  10
       2.2.5.  sdfData . . . . . . . . . . . . . . . . . . . . . . .  10
       2.2.6.  sdfThing  . . . . . . . . . . . . . . . . . . . . . .  11
       2.2.7.  sdfProduct  . . . . . . . . . . . . . . . . . . . . .  11
   3.  SDF structure . . . . . . . . . . . . . . . . . . . . . . . .  11
     3.1.  Information block . . . . . . . . . . . . . . . . . . . .  11
     3.2.  Namespaces section  . . . . . . . . . . . . . . . . . . .  12

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     3.3.  Definitions section . . . . . . . . . . . . . . . . . . .  13
   4.  Names and namespaces  . . . . . . . . . . . . . . . . . . . .  14
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