Re: GRDDL and HTML5

Ian Hickson wrote:
> On Mon, 25 Aug 2008, Harry Halpin wrote:
>> You don't have any problems with GRDDL's use of profile if it's a 
>> @rel="profile", or GRDDL's use of @rel="transformation", correct?
> 
> I think that declaring metadata vocabularies is a bad idea regardless of 
> the syntax. However, the <link rel=""> feature is explicitly intended as 
> an extension point for people who want to do whatever they want to do, so 

So is head/@profile.

> from an HTML5 perspective it's fine. The profile="" attribute is worse 
> because it encourages other people to make the same design mistake, and it 

Which design mistake?

> misleads people into thinking that they have to declare their 
> vocabularies, and it misleads people into thinking that other people will 
> declare their vocabularies.

I think it's a good design to declare a vocabulary.

>> Yes, that would be true, but you'd have to explicitly add it to your 
>> list of GRDDL transformations. Which is also work.
> 
> It's work you will have to do anyway, since not all microChemistry users 
> will label their documents as using microChemistry.

How do you know that?

> It's also only work for the GRDDL users who care about microChemistry, 
> which is likely less than the number of microChemistry users.
> 
> 
>> So, for agents when encountering a profile that has a transformation 
>> that is not locally cached, they could "dynamically" run the GRDDL 
>> tranformation by going to the profile page.
> 
> Only if the profile page declares the GRDDL transformation, which is 
> unlikely in practice.

Why is that unlikely?

Lots of assumptions...

BR, Julian