[Fiware-webui] Fwd: [Fiware-ngsi] Releasing a first batch of NGSIv2 stable functionality as "production ready" by the end of May

[Philipp Slusallek]

FYI,

    Philipp


-------- Weitergeleitete Nachricht --------
Betreff: 	[Fiware-ngsi] Releasing a first batch of NGSIv2 stable
functionality as "production ready" by the end of May
Datum: 	Tue, 26 Apr 2016 18:13:14 +0200
Von: 	Fermín Galán Márquez <fermin.galanmarquez at telefonica.com>
An: 	fiware-ngsi at lists.fiware.org



Hi,

We started to work on NGSIv2 (both at specification level and reference
implementation in Orion Context Broker) last summer. Since that time,
the NGSIv2 API has been in "beta" status, thus available for early bird
testing (which is good) but not suitable for production usage (which is
not so good). But now, more than half a year later, we think that big
part of the specification has achieved a very mature status so it should
progress from "beta" to "production ready" status.

In particular, this "batch" will be focused on the context management
functionality (AKA "NGSI10" in the old OMA-NGSI terms) as described
right now in the specification at
http://telefonicaid.github.io/fiware-orion/api/v2 (e.g. create/update
entities, get entities attributes, filters, notifications in NGSIv2
format, etc.). The releasing date for this first batch is expected by
the _end of May_.

Of course, this doesn't mean that the NGSIv2 work (both specification
and implementation) will stop after May. There are still exciting areas
(context management availability, JSON-LD, etc.) under discussion. In
addition, some advanced features in context management (e.g. filters on
structured attribute values) will not be ready by the end of May. Thus,
at some point we will "branch" the spec document, to "freeze" a snapshot
corresponding to the stable batch and, at the same time, continue to
work on the new topics (and, in the future, produce new batches).
However, what is important to remark is that any future evolution or
addition to NGSIv2 has to be done in a way in which it is compatible
with the existing stable batch, i.e. preserving backward compatibility.

In summary, the plan is as follows:

  * To polish and branch the spec at
    http://telefonicaid.github.io/fiware-orion/api/v2, in two documents:
    stable and wip.
  * To align reference implementation (Orion Context Broker) with that
    "stable" spec (most of that work is done already).
  * To "freeze" spec and reference implementation by the end of May.
  * In parallel with the above points, discussion on ongoing topics
    (e.g. JSON-LD) will continue and its "output" will be available in
    coming stable batches (post-May) of NGSIv2.

Any feedback is welcome. The deadline to receive such feedback is _May
15th_.

Thanks!

Best regards,

------
Fermín
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