Abstract: Some embodiments provide a non-transitory machine-readable medium that stores a program executable by at least one processing unit of a device. The program retrieves a plurality of sets of master data from a plurality of master data sources. Each set of master data in the plurality of sets of master data includes a set of entities. For each entity in each set of entities, the program further determines whether the entity is consistent or inconsistent. The program also receives, from an application, a request for a set of entities. The program further determines a subset of the set of entities, each entity in the subset of the set of entities determined to be consistent. The program also provides the subset of the set of entities to the application.

Abstract: Technologies are described for converting object-based query language queries into structured query language (SQL) queries. For example, converting an object-based query written in an object-based query language to generate a converted SQL query can comprise extracting incompatible keywords from the object-based query, generating metadata for objects and fields used in the object-based query, inserting implicit query information into the object-based query, and transforming a structure of the object-based query into a SQL compatible structure. The object-based query can also be enriched with application information for mapping entities to specific applications. The converted SQL query can be output.

Abstract: Technologies are described for transforming data using exchanged metadata. For example, domain object metadata that defines one or more domain entities can be received. The domain object metadata is associated with a first application. Transformation metadata that defines transformations to be carried out for the one or more domain entities can be received. The transformation metadata is associated with a second application. Data to be transformed can be received (e.g., from the first application). The received data can be transformed according to the transformation metadata. The transformed data can be output (e.g., sent to the second application).