"Without proper data, BI is meaningless"

This claim is put forward by BI analyst Lyndsay Wise in an article in DM review .
She also writes: “Data cleansing tools are a critical component to ensure that dirty data is not brought into the organization’s data warehouse. Non-cleansed data may lead to capturing duplicate, nonvalid records, building reports based on wrong data and [...]

Study shows CFO stressed over Poor Data Quality

An IDC study called ‘Understanding Data Quality Needs And Practices In Asia Pacific’ shows that a majority of Finance Executives admitted to facing stress due to Poor Data Quality in their decision making.  22 percent found it highly or quite stressful.
Another interesting aspect of the study is that 30 percent of the respondents spent 8 hours per week or more verifying the accuracy and quality [...]

Deloitte’s take on Data Quality

I stumbled over this quote from Deloitte:
“Ultimately, poor data quality is like dirt on the windshield. You may be able to drive for a long time with slowly degrading vision, but at some point, you either have to stop and clear the windshield or risk everything.”
I like the analogy