Is there a workflow integrated in Zope / Plone Content Management System and if so, of what kind?
Yes. Plone / Zope Content Management System has an integrated editorially workflow engine. The editorial workflow in Zope / Plone Content Management System contains the transitions “release”, “reject”, “retract”, “publish”, as well as the states “private”, “pending”, and “public”. Please note also the Zope / Plone Content Management System workflow diagram.