Re: [Ietf-message-headers] provisional registration Memento-Datetime header

[Ted Hardie <[e-mail]>]

Howdy,

First, I would suggest that the pointer given in the specification document
be to the introduction document (http://www.mementoweb.org/guide/quick-intro/)
because leaping into the middle of the guide cited doesn't tell you anything
about what this is for.  Without that, it is sort of hard to tell
whether the header
is well-specified.

Second, I would suggest that you include in the linked document (
guide or other)
ABNF or similar pseudo-code indicating what you expect in the two
headers you are
dealing with.  This would tell a develop whether or not q-factors are permitted,
for example.

Third, I would suggest you consider a modification similar to that in
Accept-Language,
allowing you to include a series of time values and q factors for
them.  If you would really
like August 28, 1963, but would okay with August 29, 1963 or August
30, 1963, the
q-factors would allow you indicate which would be better.  I also
strongly suspect
that if you don't do this some bright spark will do it for you later,
as we've seen
q-factor additions crop up to Accept headers in a variety of "Interesting" ways.

regards,

Ted Hardie

On Wed, Sep 29, 2010 at 10:18 AM, Herbert Van de Sompel
<[e-mail]> wrote:
> PROVISIONAL MESSAGE HEADER FIELD SUBMISSION TEMPLATE:
>    Header field name: Memento-Datetime
>    Applicable protocol: http
>    Status: provisional
>    Author/Change controller: Herbert Van de Sompel, [e-mail], Los
> Alamos National Laboratory, http://public.lanl.gov/herbertv/
>    Specification document(s): http://www.mementoweb.org/guide/http/
>    Related information:
>
> Van de Sompel, H., Sanderson, R., Nelson, M.L., Balakireva, L., Ainsworth,
> S., Shankar, H. (2010) An HTTP-Based Versioning Mechanism for Linked Data.
> Proceedings of the 3rd Workshop on Linked Data on the Web (LDOW2010).Arxiv
> preprint. http://arxiv.org/abs/1003.3661
>
> Van de Sompel, H., Nelson, M.L., Sanderson, R., Balakireva, L., Ainsworth,
> S., Shankar, H. (2009) Memento: Time Travel for the Web. Arxiv preprint.
> http://arxiv.org/abs/0911.1112
>
>
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