[Zope-dev] Version Control

[Saravanan Bellan]

I'm looking at ZOPE to be used to act a version control for some documents.
I have used the Version object in Zope but unable to satisfy my
requirements.

Couple of questions regarding that,

1) Does a new Version object needs to be created, everytime a change has to
be made?
2) How can I list all the version changes undergone by a zope object?
3) Can I view a previous version of a document without undoing to that
version.

Even if ZOPE does not provide these functionalities directly, please provide
me with the Classes and  Modules which should be extended.

Thanks in advance.