A datum is a role played by a proposition, as John Sowa said. A single
value is not a datum unless it represents a proposition.  (01)
Propositions (or data objects) are not restricted to triples (subject /
predicate / object, subject / verb / object, entity / attribute / value,
entity / key / value, ...). Some propositions naturally require higher
arity, e.g., X is 3 meters from Y. Propositions represented by subject -
predicate - direct object - indirect object in English (Juan gave Xue
the book) can be modeled by reifying the action and conjoining multiple
ternary propositions, but a single higher-arity proposition can be useful
for many purposes.  (02)
-- doug  (03)
On Tue, January 8, 2013 08:13, John F Sowa wrote:
> ... The word 'proposition', for example,
> is more fundamental than the words 'assertion', 'statement', 'judgment',
> 'assumption', 'belief', 'hypothesis', 'axiom', or 'theorem'. Therefore,
> it is reasonable to say that Proposition is the natural type, and the
> other words describe roles that a proposition can play.  (04) 
> The words 'datum' and 'data' most definitely describe roles.  (05)
On Mon, January 7, 2013 19:29, Melvin Carvalho wrote:
> On 7 January 2013 23:25, Kingsley Idehen <kidehen@xxxxxxxxxxxxxx> wrote:
>> On 1/7/13 5:04 PM, Gary Berg-Cross wrote:
>>...
>> "data object" is much clearer [1] i.e., a resource comprised of
>> structured
>> data. Typical representation, for a given perception medium (e.g., the
>> World Wide Web or paper) is a subject->predicate->object,
>> subject->verb->object, entity->attribute->value style of graph pictorial
>> :-)  (06) 
> I used to talk to people about "predicate / object" and mainly would get
> blank stares.  (07) 
> I tried "attribute / value" which seemed to have *slightly* more
> understanding.  (08) 
> I'm adding to my terminology to term "key / value pairs" which I think may
> be effective to some audiences  (09) 
>> Links:
>>
>> 1. http://bit.ly/PnTJdV -- understanding data objects .
>>
>> Kingsley
>>
>>
>> Gary Berg-Cross, Ph.D.
>> gbergcross@xxxxxxxxx
>> http://ontolog.cim3.net/cgi-bin/wiki.pl?GaryBergCross
>> Potomac, MD
>> 240-426-0770  (010) 
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