The evolving field of Big Data and business analytics involves asking the right questions, and understanding and evaluating organizational goals and targets. Analysts dig into the vast amount of statistical data available to help discover trends and make predictions, and then use these to make strategic and data-driven decisions. As an example of the way business analytics is used, marketers use web analytics to determine the relative success of campaigns. In investment and finance, portfolio analysis is a common application of analytics, as is risk analysis.