MiniApps are "smart," stateless, role-specific Web applications that are fully integrated in the mySAP Workplace. SAP delivers a variety of MiniApps that offer access to various SAP component systems, and also provides ample opportunity for developers to create their own using HTML, DHTM, JavaScript, Active Server Pages, and Java. With Release 4.6C, you can now also create MiniApps using the Web Application Builder, a new platform for developing ITS-based Web applications within the comfort of the ABAP Workbench. When, why, and where does it make sense to go with this approach and this new development tool? What do you need to know about the architecture of the Workplace before you can attempt to build an ITS-based MiniApp? What development objects will you need to implement? What utilities are available to help you develop those objects? And what steps must you take in order to build that MiniApp from start to finish? This article answers these questions.