[cap-talk] Facet term

[Norman Hardy]

I recall "facet" first in the Joule context, when it was spelled  
"Jewel".
See <http://www.agorics.com/Library/joule.html>.
In Keykos two start keys to the same object are two facets to the  
same object.
Dean Tribble or Mark Miller probably introduced it.

I introduced "service key" recently to unify a discussion of keepers.
See <http://www.cap-lore.com/CapTheory/KK/Keeper.html>.
It is a key category for explaining kernel logic.
It was to unify a discussion of keepers.
The kernel's message to the keeper includes the service key to the
kept object so that the keeper can fix the object.
The service key for a meter or segment is the node key.
The service key for a domain is the domain key.
The kernel knows node keys and domain keys when it sees them.

Hope this helps.

On Jun 23, 2006, at 8:19 PM, Charles Landau wrote:

> At 5:45 PM -0700 6/21/06, Jed at Webstart wrote:
>> At 03:32 PM 6/21/2006, Norman Hardy wrote:
>>> A trivial program would use the service keys to record the  
>>> current and
>>> cumulative usage.
>>
>> This is the first I've heard of a "service key" (capability).   
>> What is the
>> role of a service key?  How does it tie in with meters and space  
>> banks?
>
> It's a more powerful facet of the resource object.
> Is the term "facet" generally known and understood, or is it  
> restricted to E?
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