Please answer the following questions

1. Is there an "authority" or designated body on the exact meaning of "Big Data" and its solutions?

2. Commercial entities such as Google, Amazon, IBM, Oracle, Yahoo and others have their own often self-serving definitions that lead directly to their specific solutions and products. Select three (3) commercial companies that offer "big data solutions". Describe and critique their definitions of Big Data in a brief, 3-4-page report. Please cite all the references properly that you mention in your report (see the FAQ).