The goal of the proposed master thesis is to define an architecture that enables visual prototyping of real-time audio applications and plug-ins. Visual prototyping means that a developer can build a working application, including user interface and processing core, just by assembling elements together and changing their properties in a visual way. Specifically, this research will address the problem of having to bind interactive user interface to a real-time processing core, when both are defined dynamically, the set of components is extensible, it allows bidirectional communication of arbitrary types of data between the interface and the processing core, and, it still fulfils the real-time requirements of audio applications.