Skip to main content

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [List Home]
Re: [open-measured-data-wg] OpenMDM4 compatiblity

Hi Andres

as far as I remember we also talked about that in the Demonstrator Roadmap workshop end of january. The common agreement in the workhop was that reading backwards compatibility makes most sense. As this was not the right circle to make the decision, we explicitly asked the Steering Committee to take this question up and make a decision asap. But we never found anything regarding that point in the protocolls.


Best regards
Sibylle


---
Sibylle Peter
Head Customer Solutions
Canoo Engineering AG
Kirschgartenstrasse 5
4051 Basel
+41 61 228 94 41
+41 76 315 25 63





On 09 Mar 2015, at 22:04, Andres Almiray <andres.almiray@xxxxxxxxx> wrote:

Dear all,

As you may be aware one of the driving goals of the OpenMDM 5 Architecture is to be compatible with OpenMDM 4. However there’s still a gap among members regarding what do we mean by compatibility.

As we understood it at Canoo:

 - data stored by OpenMDM 4 systems should be readable by OpenMDM 5 systems. Writing back from OpenMDM 5 to OpenMDM 4 is not allowed, this means data must undergo a transformation form 4 to 5 if needed.

The OpenMDM 4 API defines both entities and behaviour. The OpenMDM 5 API may define only entities and perhaps partial behaviour. Features such as i18n, log gin, auditing and such belong to components that are built atop the OpenMDM5 API. If this is the case, then how can OpenMDM 5 read data that’s produced by OpenMDM 4? There most be a compatibility layer of course: at the reading level. This allows OpenMDM 5 API to evolve at its own needs arise and do not be tied to the designs of the OpenMDM 4 API.

But this is only possible if the only compatibility restriction is to have OpenMDM 4 data be readable and not writable.

If not this, what else is then to be understood as "OpenMDM 4 compatibility” ?

Cheers,
Andres

 
Andres Almiray
Canoo Engineering AG
Kirschgartenstrasse 5
CH-4051 Basel

Tel: +41 61 228 94 44
Fax: +41 61 228 94 49

andres.almiray@xxxxxxxxx
http://www.canoo.com

_______________________________________________
open-measured-data-wg mailing list
open-measured-data-wg@xxxxxxxxxxx
To change your delivery options, retrieve your password, or unsubscribe from this list, visit
https://dev.eclipse.org/mailman/listinfo/open-measured-data-wg


Back to the top