From: Markus Elfring Date: Tue, 03 Apr 2012 19:45:11 GMT Subject: Re: Maintaining historical outlines Message-ID: <4F7B5347.3010701@web.de> In-Reply-To: > Our use case for this is like so: > "ok, this is how the law is today, and we're not quite sure how it got > to this point" > But then some X time later: > "so we found out that clauses (1), (e) and (X) were changed on March > 30, 1957, and we want to know this for future reference" I imagine that technical challenges come from a different view for your use case. Content management systems can eventually show differences for line-oriented text files easily. But I guess that you are also interested in the maintenance of higher level semantic data structures that are usually contained in outlines. How would you like to build relationships between commit logs and changes to items like chapters, sections, paragraphs and sentences? Do you need to combine several information sources to generate a document query and result representation you desire? Regards, Markus