システムモデルを活用したキーボードのキー入力に関する感性設計

抄録

In an early stage of product development and design, functions and performances are required to a product have been often defined without sufficient consideration of user’s sensitivity requirements. This design way occur rework to improve Kansei quality of the product in the evaluation phase after designing. In this paper, utilizing the system model we describe the relation between Kansei requirements and components to design a keyboard. The described system model shared among stakeholders in charge of design is expected to bring traceability among system requirements and verification results without occurrence of rework. First, we define the system requirements of key stroke operation based on the user's needs for a keyboard derived from the evaluation grid method, and select the evaluation words for the sensory test of the keyboard. Next, we describe system behavior occurred by the user's key stroke operation and the physical characteristics using the sequence diagram to clarify the temporal association of the Kansei requirements related to the key stroke operation. Furthermore, by performing multiple regression analysis for past several keyboards, the relation of the physical characteristics of the keyboards to the sensory evaluation is derived. The application examples show the possibility of estimation for the sensory evaluation to perform trade study between Kansei requirements and performance requirements.