O'Reilly Team wrote:Now in its fifth year, O'Reilly's annual Big Data Now report recaps the trends, tools, applications, and forecasts we’ve talked about over the past year. For 2015, we've included a collection of blog posts, authored by leading thinkers and experts in the field, that reflect a unique set of themes we've identified as gaining significant attention and traction.

Our list of 2015 topics include:

• Data-driven cultures
  
• Data science
  
• Data pipelines
  
• Big data architecture and infrastructure
  
• The Internet of Things and real time
  
• Applications of big data
  
• Security, ethics, and governance