Algorithmic Representation of Accessible Human–IT Artifact Interaction

Abstract

It is challenging for a computer to comprehend dynamic characteristics and variables of a human user; however, conceptual modeling can serve as a language to describe these dynamic aspects. In this research, we aim to model the human user’s varying input and output modalities in human-computer interaction, making the human appear as part of the system architecture. This allows technologies to adapt to the user’s different input and output modalities. As a first step, we model a class diagram to depict a systemic view of interaction. Secondly, we formulated a state machine diagram to describe the behavior of the user and IT artifact in the context of accessible interaction. These models contribute to accessible interaction between humans and computers, where the computer either changes or adjusts its own input and output modalities so that the human can receive them and provide their own outputs according to their abilities.