A method of reducing the time taken to manufacture a bitemporal relational database is disclosed. The method involves designing business database tables with relational rules stored in a relational kernel or referential rule dictionary, and designing those tables so as to be without start date and end date columns for start of valid time and end of valid time for entities, and designing the system to be without history tables recording the history of relationships between entities in the database; the system being designed as a current view with primary key and unique key constraints, and time-related issues being taken care of by the S$, T$, and E$ tables automatically generated as the data structure of the system is populated with data.