The pattern provides a sample DataPower® domain, that enables you to start using the pattern. As a DataPower developer, you can use the existing gateways as a template for your own applications. The sample environment contains five gateways. There is one primary gateway for the Store service, and four supporting gateways that provide example back-ends for the Store Gateway to call, XACML support for a redaction scenario, and a front end to provide extra security functionality.