Overall quality of life is a composite assessment of the quality of the social, economic and physical environments. Eleven domains (or aspects of life) have been used to assess the external conditions of overall quality of life. The eleven domains were categorized into the three environments of overall quality of life. The quality of each domain was assessed by several indicators, which were then combined to create a quality of life index. Domains are defined as the important aspects of life important to overall quality of life. This map shows the overall quality of life, representing the combined attributes of the physical, social and economic environments.