The document discusses how big data is transforming purchasing and supply chain management. It notes that the volume, velocity, and variety of available data is immense and growing exponentially. By 2020, 40% of all data may come from internet-connected sensors. This data can provide new insights if analyzed properly using basic tools like Microsoft Office or specialized big data analytics platforms. The document recommends that purchasing professionals start small by analyzing internal supplier spend data to better understand spending patterns and identify areas for improvement and cost savings. If value is found, more advanced big data tools could be pursued. Overall, big data is leading to a transformation in purchasing where skills in categories, data, value creation, and system integration will be most important.