Centralized analytics is the practice of collecting and aggregating data from multiple sources into a single, centralized database for analysis. This allows organizations to track their performance across different departments and lines of business, as well as evaluate trends across multiple sources and over long periods of time.
Decentralized analytics instead takes a decentralized approach to data analysis. Rather than relying on a single collection of data, businesses can use individual data points or collections from multiple sources to determine actionable insights. This can allow organizations to drill down into specific areas of their business that could be improved or optimized, without having to rely on a centralized source of data.