Examples of stateful services

[Mark Carman <ca...@itc.it>]

Dear all,

Apologies if this request is slightly off topic for this list.

Does anybody have any WSDL examples of services with state?

We are trying to perform automated service/operation composition using 
planning technology, and we need as many examples as possible of 
services with internal state.

Also if anybody has any examples of processes involving the composition 
of multiple services, they would be very much appreciated.

Yours,

Mark Carman
ITC-irst

Re: Examples of stateful services

[Tom Oinn <tm...@ebi.ac.uk>]

We have a project called Soaplab (http://industry.ebi.ac.uk/soaplab/) 
where the services are inherently stateful; they wrap around arbitrary 
command line tools (mostly life science analysis programs) and expose 
them as services driven by metadata descriptions. These follow a 
standard factory pattern; create returns an ID, this ID is then passed 
to all other operations. This state is therefore explicit, we do not use 
mechanisms such as sessions because there is a requirement to pick up 
state at a later point or at a different location.

In addition, we have a project called Taverna (taverna.sf.net) which is 
about composing services, web and otherwise, into workflows. This is in 
use with quite a few life science groups at the moment, we're interested 
in any feedback though :)

Cheers,

Tom

Mark Carman wrote:
> Dear all,
> 
> Apologies if this request is slightly off topic for this list.
> 
> Does anybody have any WSDL examples of services with state?
> 
> We are trying to perform automated service/operation composition using 
> planning technology, and we need as many examples as possible of 
> services with internal state.
> 
> Also if anybody has any examples of processes involving the composition 
> of multiple services, they would be very much appreciated.
> 
> Yours,
> 
> Mark Carman
> ITC-irst
>