The sources of data vary. First party data involves understanding the data coming into the system from clients, businesses and customers. Second party data is the data that others are collecting to enhance the data set. For example, AOL, Google Analytics or Microsoft. Finally, there’s third party data which includes service providers like Axiom, Blue Kai and Experian to expose the data within the system and enable richer targeting.
Once captured, the next step involves cleaning and maintaining the data. It involves scrubbing it against other factors. Like when to update certain sets, how to tie data sets together, how to make certain that data remains current or assure that process are automated and identifying which data sets are complete and accurate.