[Typo3-dev] Dublin core

[dan frost]

First, I haven't looked properly at the existing solutions for workflow 
so sorry.

Ok - here's an overview.

The dublin core is a metadata standard; a set of tags for describing 
things (primarily) on the internet. One of the tags is "resource", a tag 
for describe what the resource being described is.

I've built a "resource management" system (current only code-level) 
where each class wraps a resource type (and sub-type, e.g. "human" is a 
sub-type of "party").[1] This means that dealing with a resource is done 
(almost) entriely through:

$resource->getState()

and

$resource->setState(array('stateName' => 'stateValue'...));

So, already we've got a set way of dealing with all types of "resources" 
- and note that resources are what a workflow needs to manage. All we 
need now is an easy way of saying which resources are required and in 
which order (and more complex variations thereon).

I then introduce a sub-type of the dublin core's "dataset" resource 
type: "workflow". This is a just a list (workflow) of lists (roles and 
actions). Each "roles and actions" list contains a list of all of the 
roles required, and which should be done when the required resources 
fulfilling those roles reach a certain state.

Soon I'll release it...

Dan

[1] For those of you into it: this implements a combination of the Proxy 
pattern (resource state can be local/foreign and possibly built of 
complex data) and the Facade pattern (the programmer can get to the raw 
data if required).


Peter Niederlag wrote:
> Hi Dan,
> 
> On Tue, 10 Feb 2004 19:46:32 +0000
> dan frost <dan at danfrost.co.uk> wrote:
> 
> 
>>Anyone done anything using dublin core resources to define "things".
>>
>>I think i've just built a completely flexible workflow using dublin
>>core "dataset" to define a list of stages, each list having a "next
>>stage" logic built in.
> 
> 
> That sounds really great. Also it is on my duty to do something about
> the workflow I dont really get that much forward since I am just not
> firm enough into programming and are still overloaded with so much daily
> stuff. :-<
> 
> I would really love to get some more info on this, so would probably
> rene and daniel h. I guess.
> 
> Can you send some pointers?
> 
> Thx and Cheers,
> PeterN