[core] Base value for SenML

[Ari Keränen <[e-mail]>]

Hi CoRE WG folks,

Currently the base object for SenML allows defining a base name (to be prepended on all entry names), a base time (to be added to all entry times), and a base unit (a "default unit" if one is not defined in entry).

Now the question is should we also have "base value" that would be used as a default when an entry does not have any value?

This could be useful for example in a case where there is a ton of measurements with exactly same value and only very few differing values. Then, one could define e.g., just different time or name for all entires and leave the value part out completely when it is equal to the base value.

This seems to make sense and would apparently require only fairly small modifications in the draft. If we want to do this, we should most likely call that new base value "bv" and then rename the "boolean value" to "vb" -- and for consistency change "string value" to "vs".

Opinions?


Cheers,
Ari