Big data technologies are a critical piece of your BT agenda, offering the opportunity to close the gap between the data that's available and the ability to turn that data into insight. But from a business intelligence (BI) perspective, big data is also a challenge as it introduces disruption from new and sometimes immature technologies, as well as the risk of building yet another data and application silo. This document predicts the key trends application development and delivery (AD&D) pros will need to act upon in 2015 to tap BI and big data technologies for greater customer insights. In a separate report, we outlined our 2015 predictions for BI, and suggest that AD&D pros read and use both reports in conjunction.