Big data is big business: analyst Gartner says the amount of chief data officers (CDOs) being appointed by major organisations rose from 400 in 2014 to 1,000 in 2015. The analyst predicts 90 per cent of large companies will have a CDO by 2019.
Such CDOs can help firms to focus on the value of analytical information. But all organisations — with or without the appointment of a CDO — must find ways to demonstrate the value of big data, and that job often falls to the CIO. 
 By Mark Samuels for ZDNet