[OAI-implementers] ListMetadataFormats under OAI-PMH 2.0

[Mark Noten]

When the optional argument identifier is included in the 
ListMetadataFormats request then only the metadata formats that a record 
with this identifier can be delivered in, will be returned.

Steve Sarapata wrote:

> OAI_PMH v2.0
>
> When verb ListMetadataFormats is sent with no arguments it should 
> return a list of all metadata formats supported by the repository.
>
> What is the proper usage or functionality of ListMetadataFormats when 
> the optional argument 'identifier' is included?
>
> Thanks,
>
> Steve
>