Construction model of precursory image based on the perspective of Basho condition

─ Generating precursory image of Interactive System by using sketch

Abstract

The integration of interactive systems consisting of humans, artifacts, and the environment requires a precursory image as a prerequisite for the designer's cognitive processes. No concrete model for constructing it has been presented. In this study we proposed and verified a hypothesis for the construction model of system. It is that an organized precursory image involving the system is constructed, part of which are visualized in a sketch. Basho conditions constrain the behavior of an element. As a result, the following three points were confirmed. First, Basho conditions are reflected in text and idea sketches. Second, the system is visualized in the sketch by the abduction of the Ba based on the conditions of Basho. Third, the visualized sketch include this precursory image, system. This means that concrete sketches of artifacts and environments satisfying the conditions of Basho can identify system boundaries, interactions within the system, and interactions between the system and the outside.