Introduction to Systems Controls Flashcards
Input Validation Routines
Edit programs or input validation routines are programs that check the validity and accuracy of input data. They perform edit tests by examining specific fields of data and rejecting transactions if their data fields do not meet data quality standards. Edit tests include completeness checks, which ensure that data is input into all required fields; limit checks, which ensure that only data within predefined limits will be accepted by the system; validity checks, which match the input data to an acceptable set of values or match the characteristics of input data to an acceptable set of characteristics; overflow checks, which make sure that the number of digits entered in a field is not greater than the capacity of the field; check digits, which can be used for determining whether a number has been transcribed properly; and key verification, which is the process of inputting the information twice and comparing the two results.
