Context Diagram
DFD – Level 0
DFD – Level 1
Data Dictionary
Data Flow Data Flow Name or Label | Student Number | Alternate Name | – Student Details | Description | Identification number of student | Origin | External Entity - STUDENT | Destination | PROCESS - Validate details or corrections if possible | Record | 1000 records | Volume and Frequency | 100 transactions a month |
Data Flow Data Flow Name or Label | Student Information | Alternate Name | - Student Grades | Description | Student’s information and grades | Origin | PROCESS - Validate details or corrections if possible | Destination | External Entity – STUDENT | Record | 1000 records | Volume and Frequency | 100 transactions a month |
Data Flow Data Flow Name or Label | Request Info | Alternate Name | - Information | Description | Student’s assessment information | Origin | PROCESS – Input Student Information | Destination | Data Storage – account database | Record | 1000 records | Volume and Frequency | 100 transactions a month |
Data Flow Data Flow Name or Label | Requested info | Alternate Name | - Updated Information | Description | Updated student’s information and grades | Origin | Data Storage – account database | Destination | PROCESS – Input Student Information | Record | 1000 records | Volume and Frequency | 100 transactions a month |
Data Flow Data Flow Name or Label | Check student number | Alternate Name | - unverified student number | Description | Validation of student number | Origin | PROCESS - Validate details or corrections if possible | Destination | Data Storage – user database | Record | 1000 records | Volume and Frequency | 100 transactions a month |
Data Flow Data Flow Name or Label | Matched Credentials | Alternate Name | - Verified student number | Description | Validated student number | Origin | Data Storage – user