The attendance rule indicates a set of parameters about time and attendance, including the weekend settings, absence rule, overtime parameters, attendance calculation mode, holiday settings, the calculation of leaves, the authentication mode selection of attendance check, etc. It can be defined as a global rule, department rule, or group attendance rule. You can configure an attendance group with a group attendance rule which has higher priority than the department rule. You can also configure a department with a department rule which has higher priority than the global rule used for the whole company or institution.