Hi, I am in the process of reviewing the design and features for version 2 of one of my company's internal applications ( for external clients, etc ). The first version was developed using Java with Struts and Tiles. I have now a "big question". There's a lot of features in Plone that I would like to implement ( events, calendars, preferences, cross-browser support ) basic stuff that I have to implement from scratch in a j2ee app. This application is a transactional one, inventory management, notifications, reports, etc. Is Zope or Plone able to work under this type of application? I am asking because Plone ( and Zope I think ) are referred as Content Management Systems and I can't find info about potentially heavy transactional systems working on top of this systems. The question is not if Zope or Plone are great because they are, but if they are a good ( better? ) platform for this other type of web applications, can it scale to support database/messaging transactions with potentially complex business logic for thousands of users? Thanks for your comments, And.