Businesses often struggle to get value from their data, either because it is kept in legacy systems or is siloed in spreadsheets. If data remains in isolated systems and spreadsheets, it is impossible to have full operational visibility without extensive manual intervention.
A team of data experts can build a data warehouse, and teams of developers can build custom software to replicate data between systems, but these projects are expensive, high maintenance, and protracted: the world has moved on before they are even finished.