Alternative data is a specific type of external data that’s complex, unique, unstructured and unexplored. It's often considered big data.
Sources of Data
Where does data come from? Explore the various sources of data.
Internal data is private or proprietary data that your organization owns, controls or collects. Examples of internal data include sales data, website data, customer information and financial data.
External data is data collected from sources outside your organization (aka the cool data). It could either be external or internal.