Re: [mmox] LLSD

http://wiki.secondlife.com/wiki/MMOX is non-authoritative, but yes  
LLSD is one of the work items we have on the list.

the objective of LLSD is to provide an abstract type system with  
multiple serializations. it also defines the mime types.

however, to say that the LLSD draft exists only to define the  
serializations is akin to saying that ASN.1 exists only to provide  
input into DER or BER encodings. the two are linked, but each has a  
particular use.

LLSD as an abstract type system allows us to define and reason about  
the semantics of structured data used in PDUs independent of an  
existing implementation language. the serialization rules allow us to  
format structured data prior to transport and later de-serialize it  
after receipt. the MIME type registrations allow us to identify the  
serialization scheme used on transports that support the use of MIME  
types. LLIDL (pronounced "little") defines the set of expected  
parameters to and responses from a resource access.

LLSD was selected as the first draft to work on as it is used as a  
building block for other protocol interactions, some of which are  
published in draft form on the second life wiki. the further  
development of these protocols is also considered a task of the  
proposed working group.

-cheers
-meadhbh

On Feb 19, 2009, at 7:52 PM, Charles Krinke wrote:

> In looking at the secondlife wiki at http://wiki.secondlife.com/wiki/MMOX 
>  it looks like one of the first proposals for this working group is  
> the LLSD draft specification.
>
> Am I correct in that the gist of the LLSD specification is  
> essentially to propose three mime formats and thats about it for now?
>
> application/llsd+xml
> application/llsd+json
> application/llsd+binary
>
> Charles
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