Abstract
When technology development is conducted based only on a developer's idea, we face difficulties in realizing products and services that will be well accepted by people. This is because it is difficult for a developer to know precisely how various users think and feel while using products or receiving services under real life situations. In order to overcome these difficulties, we have developed cognitive chrono-ethnography (CCE) which is a new method to understand cognitive behavior under various situations. This method clarifies the cognitive behavior process by selecting “elite monitors” taking characteristics of target users into consideration, identifying “critical parameters” utilized in designing the products or services, recording the human behavior in real life situations under the control of the parameters, and retrospectively interviewing the participants. This method is applied in the early stages of synthesiological R&D processes oriented toward designing target products and services acceptable by people.
