Big-data-related inquiries have mushroomed in the past year. Forrester's data indicates that most organizations are either experimenting with big data technology or have already started. This report provides answers to the five most common strategic questions Forrester gets: How does Forrester define big data? Why should firms care about it now? How do we go about turning big data into business insight? What are the best practices? What are the challenges? This report will provide the necessary foundation of understanding, shaped by clients who have already begun the journey.