In 2015, the analytics software market experienced significant developments, with trends such as open-source software, cloud hosting, and SQL on Hadoop continuing to gain traction, and AWS Redshift emerging as a major player in data warehousing. The Hadoop ecosystem saw a shift towards SQL interfaces with contenders like Presto, Impala, and Drill, while Spark gained momentum as a successor to MapReduce, bolstered by IBM's substantial investment. Open-source machine learning libraries like Google's TensorFlow and Microsoft's DMLT became increasingly available, enhancing the capability to develop sophisticated algorithms. In the realm of business intelligence, open-source tools like Jaspersoft, Pentaho, and newer projects like Metabase gained attention, while event analytics companies like Mixpanel and Heap innovated with features like "Codeless Analytics." The widespread adoption of AWS Redshift led to the rise of startups focused on data ingestion and analysis, although the potential impact of AWS's QuickSight was uncertain. The market also faced challenges with a funding slowdown, prompting concerns about valuations and the financial landscape for analytics companies.