Human resources system development

Defining a human resource system is disclosed. Metadata models are defined. Processes are defined. The human resources system is stored including metadata models and processes, wherein the stored metadata models and processes are interpreted using an interpretive engine, wherein the interpretive engine is configured to process the metadata model and process definitions without compilation of any code, and wherein defining metadata models and defining processes when interpreted by the interpretive engine is sufficient to define a fully functional human resource system.