GolfBonk is based on a new extension to the WeatherBonk architecture, which provides support for very rapid development of enterprise-grade mashups. At its core are a set of custom java annotations used in conjunction with the object's definition that define the necessary 'meta-data' on how to integrate the object in a mashup. Thus, an existing enterprise system can readily be 'mashed-up' by simply adding the required annotations, or creating a simple wrapper class. Once the annotations are defined, the rest of the application is automatically assembled. For example, to add a new field to an object requires a change only in one place. Depending on the configuration, it would propagate to other parts of the application, such as a filter for the user query, as a column in the detail grid, in the popup, and as an editable field for user modified data.