Okay i will google doc chaining .
user interface i mean the QV sheet where user use that for analyse their report , the chart and table which help user answer their question.
So that don't need to make so much modification on QV screen , just add new SOURCE. meaning just need to read the new raw data and make the field name all same , so that when QV binary load the data , don't need to make much changes on QV sheet.
Just want to clarify, is this for one particular industry segment or multiple industry segment??
From developer point of view your idea seems okay and even if it is one particular industry segment, you idea will work.
But when comes to different industry segment, you would be having different insights, different user expectations..And this is what Today's BI offer to their customers