What is 'alternative data' and how can you use it?

If you are like most CIOs, you have spent considerable time and resources on a BI program. You added some rigor around your company's processes for collecting historical sales data, for example, and you put in the tools to give dashboards to your executive colleagues who report on past performance and forecast the future.  While establishing your BI program has been a tremendous effort and has certainly delivered great value to your business, it is only the beginning of your work with data,