Single source of truth
Single source of truth (also known by its acronym, SSOT; hereinafter, SSOT) is either (a) a document which trustfulness is higher that the one of any other document or (b) a database that represents such documents. The concept of SSOT ensures that everyone in an organization bases enterprise decisions on the same data. If some data or document evolves over the time, SSOT is the practice of working on that data or document in only one place. In database architecture, the SSOT is a model of using a master or federated database as the primary location to propagate any change to the entire system automatically.
