AW: [Zope3-dev] role (contextual) services?l

[Stephan Richter]

On Sunday 04 April 2004 10:47, Roger ineichen wrote:
> Our idea: A instance is just a location and is persistent.
> The models in this instance can be easy
> replaced and enhanced. We can provide old models
> and new models at the same time in different context's.
>
> This means a customer whould like to have new
> functions in a content type, but some users of the
> system whould like to have the old functions provided.
>
> Sometimes if the new model and the old model are
> inconsitent there is a hard way to bring this whishes
> together and needs big changes or a new content type
> which works totaly different.

I think what you are looking for are TTW adapters and other components.

You simply create two sites called "new" and "old" and register different 
components with the same semantics in each site. You would then just need a 
way to share the data; maybe something like that:

/root
  /data
  /new
  /old

BTW, just thinking out loud...

Regards,
Stephan
-- 
Stephan Richter
CBU Physics & Chemistry (B.S.) / Tufts Physics (Ph.D. student)
Web2k - Web Software Design, Development and Training