Generating content presentation according to purpose

Programming graphical user interfaces is hard and expensive, while automatic generation is still quite challenging. One of the issues involved in automatic generation is the presentation of content from the domain of discourse according to its purpose in the current context of the human-machine dialogue. For example, it makes a difference whether the same piece of information is to be presented in the context of asking a user something, or simply for the purpose of informing. We address this issue through generating content presentation specifically according to the type of communicative act, that indicates the purpose. In the course of transforming a high-level discourse model to a structural user interface model, we apply specific model-transformation rules to content types, depending on the type of communicative act they are referred from. This results in automatically generated user interfaces with content presentations according to purpose.