OverviewEco-design has become a central research issue for interaction design, as emerging interactive products can create serious environmental impacts while products are being used. We investigate a design method and develop case studies for eco-friendly interaction. A main concept of the design method is to apply unconscious human behaviors in interaction design. Products designed with this method are expected to be used unconsciously by users with reduced environmental impacts. In this paper, we present a framework of design space matrix and initial case studies for the design method. For the framework, we identified the types of interaction behaviors causing environmental impacts and the attributes of unconscious human behaviors. Based on the framework, three design cases -a power cord, a trashcan and a speedometer of an automobile -were developed. The proposed framework and design cases can be used as a base of an advanced eco-friendly interaction design method. KeywordsEco-friendly interaction design, unconscious human behaviors, thoughtless act, design for sustainability, interaction design ACM Classification KeywordsH.5.m. Information interfaces and presentation (e.g., HCI): Miscellaneous.

In this paper, we explore the use of an Eco-Driving System [1] to see how the system promotes greener driving behavior. We conducted both an online survey (N=60) and a user test (N=14) to study the EcoDriving System. Based on participant responses, we found that the current Eco-Driving System shows minor benefits in gas mileage due to different driving behaviors and also increased task loads for our participants. Therefore, we suggest a new research direction for the Eco-Driving System for further study.

Inflatable Mouse is a volume-adjustable user interface. It can be inflated up to the volume of a familiar mouse, but be deflated and stored flat in a PC card slot of a laptop computer when not in use. Inflatable Mouse functions just like a typical mouse; moreover, it provides new interaction techniques by sensing the air pressure in the balloon of the mouse. It also addresses some issues associated with pressure-sensing interactions such as the lack of bidirectional input and the lack of effective feedback. Moreover, it can be used as both a control tool and a display tool. In this paper, the design of an Inflatable Mouse prototype is described and potential application scenarios such as zooming in/out and fast scrolling using pressure control are explained. We also discuss the potential use of Inflatable Mouse as an emotional communication tool.

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