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Excel is the competition, which should be challenged
One of the most common questions you will phase is that "why can't we do the same thing in excel? Just import the data and create the pivots and bingo..". Be ready with the arguments of Data Integrity, Historical Data, Integration across the system, common definitions etc..
 
This page of 'Principles and Rules' is linked to:  Data Analysis/OLAP, BI platform Tools Evaluation, Data Warehousing, BI business intelligence end-to-end view,




For any Data Management or business intelligence (aka information management) work of any significance, excel is not the right tool (unless it is used just for front end and is not the repository of Data). The reasons are as follows:

  • Data Integrity: You can send the excel files via email, they can be changes by different users, there can be separate version floating across in the system, they don't have the way to synch up with the data in company databases. For example the customer master in an excel file could be totally out of synch with the customer master in your ERP systems.
  • Its difficult to refer to common meta-data to manage data on excel.
  • The scalability of excel.

These are few of may reasons that excel should not be considered as a tool to do any initiative of significance.

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