ActiveFacts provides the Constellation Query Language (CQL), a fact modeling and query language. CQL combines a controlled natural language verbalisation with formal logic, producing a formal language that reads like plain English. ActiveFacts compiles fact models in CQL and generates relational and object models in SQL, Ruby and other languages.

Create and represent composite schemas, schema transforms and data transforms over a fact-based model

Core meta-model for fact-based models (schema). This gem provides the core representations for the Fact Modeling tools of ActiveFacts.