Abstract
These days, the terms of “resilience” and “vulnerability” are often used in the fields of climate change, natural disaster etc. These terms are the concepts for representing why and how a system responds to disturbance, but they might bring confusion because the definitions of them are various. This paper reviews the progress and various definitions of two concepts which have been developed in academic fields in English speaking world. Additionally, it implies that the elements of resilience and vulnerability, like “exposure”, “sensitivity” and so on, explain why and how a system responds to disturbance.[This abstract is not included in the PDF]