2.9.3 Error Handling Overview

When the user comes accross an error in an action they attempt to execute the system displays an error message in the form of the following, Figure 1.


Figure 1: Error Message Dialogue.



Below is a list of all error names with their associated errors messages that could be displayed to the user upon the system recieving and error.

Error Scenario Error Name Error Message
Adding/Editing Category  Invalid Weight Input
 Weight input must be a non-negative number between 0 and 100
Late Policy  Invalid Property Input
 Late policy property valid invalid
Adding/Modifying Students  Invalid EMPL Id
 Invalid Phone Number
 EMPL id input must be a non-negative number
 Phone number input must be a non-negative number with the form (XXX)-XXX-XXXX
Adding/Modifying Assignments  Invalid Weight Input
 Invalid Total Score Input
 Weight input must be a non-negative number between 0 and 100
 Total Score input must be a non-negative number
Entering Scores  Invalid Score Input
 Score input must be a non-negative number
Predicting Grades  Invalid Score Input
 Score input must be a non-negative number
Electronic Submission  Invalid File
 Selected file is either corrupted or does not exist
Authentication  Invalid Username
 Invalid Password
 Username is invalid, please try again
 Password is invalid, please try again





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