Hierarchical metadata model querying system

An apparatus comprising:

• a memory that stores a set of instructions;
• and
• a hardware processor configured to execute the set of instructions to:
• receive a query identifying an application;
• execute the query against a metadata model for the application to obtain a result, the result identifying a first metadata object satisfying the query, wherein the metadata model identifies a plurality of metadata objects and hierarchical relationships among the plurality of metadata objects, and wherein the metadata model comprises information about semantics of data used by the application;
• determine, from the plurality of metadata objects, a second metadata object referenced by the first metadata object;
• determine, from the plurality of metadata objects, a third metadata object that is a parent object of the first metadata object;
• build a directed graph including the first metadata object, the second metadata object, and the third metadata object, wherein the directed graph comprises a set of vertices and a set of edges, the set of vertices including vertices corresponding to the first metadata object, the second metadata object, and the third metadata object, wherein each edge in the set of edges connects two vertices from the set of vertices and represents a hierarchical relationship between the metadata objects corresponding to the two vertices;
• and
• provide a response to the query, wherein the response includes the directed graph.

A non-transitory computer-readable memory comprising instructions which, when executed by one or more processors, cause the one or more processors to perform:

• receiving a query identifying an application;
• executing the query against a metadata model for the application to obtain a result, the result identifying a first metadata object satisfying the query, wherein the metadata model identifies a plurality of metadata objects and hierarchical relationships among the plurality of metadata objects, and wherein the metadata model comprises information about semantics of data used by the application;
• determining, from the plurality of metadata objects, a second metadata object referenced by the first metadata object;
• determining, from the plurality of metadata objects, a third metadata object that is a parent object of the first metadata object;
• building a directed graph including the first metadata object, the second metadata object, and the third metadata object, wherein the directed graph comprises a set of vertices and a set of edges, the set of vertices including vertices corresponding to the first metadata object, the second metadata object, and the third metadata object, wherein each edge in the set of edges connects two vertices from the set of vertices and represents a hierarchical relationship between the metadata objects corresponding to the two vertices;
• and
• providing a response to the query, wherein the response includes the directed graph.