This relationship diagram depicts the core data entities and their interconnections within a school attendance management system. The system revolves around the central business activity of "Recording Attendance" and involves several key entities. "Student" is the primary subject of attendance tracking, storing basic student information. "Teacher on Duty" is responsible for supervising or executing the attendance recording process, potentially linked to specific classes or attendance events. The "Student Database" serves as a foundational information repository, providing identity data and grade/class information for the attendance system. "Attendance Records" is the core data table, storing detailed information for each attendance event, including time, student, and status (present/absent/late). Finally, "Validate Attendance" likely represents a business process step or a status table, used to record the review, confirmation, or exception handling of attendance data. These entities are interconnected through foreign keys, collectively forming a comprehensive attendance management data model that supports the entire process from data collection and storage to validation.
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