What is Genero Report Writer (GRW)? Genero Report Writer is a suite of products that provides an enterprise reporting solution. GRW overviewWith Genero Report Writer, you create a report application that serves as a data model. The data is retrieved from a data source (typically a database) and streamed to a layouter, which lays out the data according to the specifications of a report design document.GRW runtime architectureAt runtime, software components work together to produce a Genero report.GRW componentsGenero Report Writer is a suite of tools.GRW database supportGenero Report Writer uses JDBC database drivers to support a wide variety of database types.