Data architecture consists of the policies, regulations and models that define the requirements for acquiring, storing, processing, organising, integrating and publishing an organisation's data. Data architecture is one of the pillars of enterprise architecture activities.
A data infrastructure is a digital infrastructure that supports the sharing and consumption of data. Like other infrastructures, it is a necessary system for the functioning of an economy, which in this case is the data economy.
A data repository is a place where data is stored and access is guaranteed through an application service.
Data repositories can be broken down into several major classes: data sources, data warehouses, data marts, and data archives.