The document provides an overview of Forrester's evaluation of big data streaming analytics platforms. It defines streaming analytics and perishable insights that platforms can help companies detect. It also describes common streaming operators that are used to build streaming applications to filter, aggregate, correlate, and analyze streaming data. The evaluation assessed 7 platforms from vendors like IBM, Informatica, SAP, Software AG, SQLstream, Tibco, and Vitria based on their offerings, strategies, and market presence.