[xwiki-devs] How far can XWiki go?

Dear developers, Sorry to interrupt your "coding time", but I really2 need your comments, if you don't mind.. I am new in XWiki, and have few questions. We are considering to use XWiki as the base application for "another application". This "other application" is "a requirement gathering" application that: * will assume one XWiki doc as one item of requirement * each item of requirement will be belongs to certain customizable categories * each item of requirement will be belongs to certain project * there will be MULTIPLE project within the same application * there will be user access policy per project, that should be able to customized the access (only able to see certain projects, only able to change certain Xwiki doc, etc) How far can XWiki go, considering my application above?(Considering the "other application" will have new entities such like (multiple) project, category, etc..). And how big is the effort? Thanks & regards, - iwan