...

I have a few questions about Plone (in some extent CMF/Zope):

1)How to manipulate versioning in Plone? (like CPS does) I know there is PLIP8, but it is still a proposal, isn't it?

have a look at CMFEditions on svn.plone.org/collective . it is also published on plone.org site we have publieshed an alpha release, and hope to fix the remaining bug over the summer, please feel free to contribute. On sourceforge.net/projects/collective you can find the "collective-versioning" which we use to discuss on subject and coordinate the effort.

Ok, I will check this.

...

2)How to store and catalog huge document collections? -LocalFS + ZCatalog? what do you mean with "huge"?

In a first moment some tens of gigas (20 to 30 Gbs). In two or three years, some 100, 200 Gb

...

-Implement mapping and indexing in a relational DB?

google for shane's apelib or look int svn.plone.org/archetypes

Is APE stable?

(I have also de ERP5's ZSQLCatalog option...)

...

3)Is there any product or Plone plug-in that allows enhanced searches through thesaurus or ontologies, or something like this? I know there are Ontobroker and Gnowsys, but I would like to have something simpler to work on top of Plone.

nothing ready i think, but for a generic library that enables you to perform complex queries over a catalog google fro Dieter's AdvancedQuery product. Also, it is possible to implement ontologies in plone using Archetypes references and maybe using the Relations product (always from Archetypes svn o)

Interesting, I will also check this! Thanks a lot, -- Prof. Rogério Atem de Carvalho, D.Sc. Gerente de Pesquisa - CEFET Campos _______________________________________________________________________ ''O remetente desta mensagem é o responsável pelo seu conteúdo e endereçamento. A utilização deste meio para fins que não aqueles dispostos na Portaria nº 267, de 20 de outubro de 2003 da Direção Geral do CEFET CAMPOS, é passível das sanções cabíveis, dispostas nas normas internas para utilização de correio eletrônico e acesso à Internet.'' _______________________________________________________________________ Servidor de E-mail CEFET Campos