4. A computer program product for creating a context-based graph-relational intersect derived (CB-GRID) database for associating a real entity graph node to a synthetic entity graph node in a database system, the computer program product comprising: a non-transitory computer readable storage medium; first program instructions to establish a real entity graph node, wherein the real entity graph node identifies a real entity; second program instructions to create and store a pointer in the real entity graph node, wherein the pointer points to a primary key in a first tuple that non-contextually describes the real entity; third program instructions to create a primary relational database, wherein the primary relational database comprises the first tuple that non-contextually describes the real entity, and wherein the first tuple contains the primary key; fourth program instructions to create a context relational database, wherein the context relational database comprises a second tuple that contains a foreign key that matches the primary key in the primary relational database, and wherein the second tuple dynamically describes a context of data in the first tuple; fifth program instructions to create a contextual entity relational database, wherein the contextual entity relational database comprises a third tuple that contains data from the first tuple and the second tuple, and wherein the third tuple comprises a contextual tuple key; sixth program instructions to create a synthetic entity graph node, wherein the synthetic entity graph node is linked to the contextual entity relational database by the contextual tuple key, wherein the synthetic entity graph node describes a synthetic entity that is described by data in the contextual entity relational database, and wherein the contextual entity relational database links the real entity graph node to the synthetic entity graph node, wherein the real entity is a physical machine, and wherein the synthetic entity graph node describes a software-modeled machine that is operating outside of nominal parameters; seventh program instructions to receive and store output data from a sensor on the physical machine stored in the first tuple; eighth program instructions to receive and store model type data describing a model type of the physical machine stored in the second tuple; and ninth program instructions to receive and store software-modeled machine descriptor data stored in the third tuple, wherein the contextual entity relational database links the physical machine to the software-modeled machine that is operating outside of the nominal parameters; and wherein the first, second, third, fourth, fifth, sixth, seventh, eighth, and ninth program instructions are stored on the non-transitory computer readable storage medium.
6. The computer program product of claim 4 , wherein the real entity is a physical information technology (IT) system, wherein the synthetic entity graph node describes a software-modeled IT system that is operating outside of nominal parameters, and wherein the computer program product further comprises: tenth program instructions to receive and store output data from a sensor in the physical IT system stored in the first tuple; eleventh program instructions to receive and store model type data describing a model type of the physical IT system stored in the second tuple; and twelfth program instructions to receive and store software-modeled IT system descriptor data stored in the third tuple, wherein the contextual entity relational database links the physical IT system to the software-modeled IT system that is operating outside of the nominal parameters; and wherein the seventh, eighth, and ninth program tenth, eleventh, and twelfth instructions are stored on the non-transitory computer readable storage medium.