A Graphical Notation for Mixed-Initiative Dialogue with Generative Design Systems

Abstract

In generative design systems, the interaction between the designer and the generative formalism is typically transactional. The system responds to a single query or utterance with one or more results defining the transaction. A neat conceptual separation exists between user tasks and system tasks, rendering the modelling of joint responsibility for generation difficult. To address this problem, a robust basis for combining design interaction with automated or intelligent systems is necessary. We propose a mixed-initiative model of interaction that support forms of dialogue where both the designer and the formalism share responsibility over the same task. Mixed-initiative enables the role of both user and formalism to be integrated into an incremental model of transaction, where the user and the formalism can share and input data through a common shared resource, on a common shared task. In this paper, we report on the development of a shared graphical notation to support mixed-initiative dialogue situations in generative design systems. We demonstrate the use of this notation in design space exploration and discuss its implications for interaction with generative design systems based on our ongoing work.