Apparatus, system, and method for managing objects in a database according to a dynamic predicate representation of an explicit relationship between objects

A system for translating a first relationship between objects represented by a first predicate to a second relationship between the objects represented by a second predicate, the system comprising:

• a first database configured to store a first set of tuples according to a first predicate describing a relationship between objects, each tuple comprising a first predetermined number of arguments;
• a second database configured to store a second set of tuples according to a second predicate describing a relationship between objects, each tuple comprising a second predetermined number of arguments;
• a translation module including,
• a query module configured to retrieve a first tuple from the first database;
• a mapping module configured to map the arguments of the first tuple satisfying the first predicate to a second tuple satisfying the second predicate;
• and
• a storage module configured to store the second tuple.

A signal bearing medium tangibly embodying a program of machine-readable instructions executable by a digital processing apparatus to perform operations to manage objects in a database according to a dynamic predicate representation of an explicit relationship between the objects, the operations comprising:

• an operation to associate a set of predicate identifiers with a set of predicates wherein each predicate describes a relationship between objects using a predetermined number of arguments;
• an operation to store a set of tuples in a database, each tuple comprising one of the predicate identifiers and the predetermined number of arguments required by the predicate associated with the predicate identifier;
• and
• an operation to retrieve a subset of the tuples from the database satisfying a query expression.