[OASIS Issue Tracker] (COEL-130) A more optimal representation of an Atom in JSON

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Paul Bruton created COEL-130:
--------------------------------

             Summary: A more optimal representation of an Atom in JSON
                 Key: COEL-130
                 URL: https://issues.oasis-open.org/browse/COEL-130
             Project: OASIS Classification of Everyday Living (COEL) TC
          Issue Type: Bug
            Reporter: Paul Bruton


A JSON Schema is a useful mechanism for specifying and verifying the structure of an Atom. A Schema can specify which elements are 'required', but specifying interdependency or mutual-exclusion (e.g. ContextTag IFF ContextValue; DeviceID XOR ConsumerID) is not straightforward. Some small changes to the structure of the Atom would make development of a schema easier - and as a consequence lighten the burden of validation in Atom processors.

Suggestions include:

1 Implement WHAT as an array of integers rather than four discrete elements. No need for complicated 'SubClass' is required if 'Element' is present.

2 Implement Extension like the following:
{
"Int":{"Tag": N, "Value": N}},
"Str":{"Tag": N, "Value": N}},
"Flt":{"Tag": N, "Value": N}}
}
...so that we can make the elements Int, Str, Flt 'optional', but within them make the Tag and Value elements 'mandatory'

3. Implement Context as 
{
  "Weather": N ### Optional
  "Ext": {"Tag": N "Value":V} ### Optional Ext with mandatory Tag/Value
}






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