INPUT VALIDATION CONTROLS Flashcards
FIVE COMPONENTS OF INTERNAL CONTROL -
CRIM C
Control environment
Risk assessment
Information and Communication
Monitoring
Control Activities
General control activities
Developing new programs and systems
Changing existing programs and systems
Controlling access to programs and data
Controlling computer operations
Computer application control activities
Programmed application control activities
Input Controls
Overall controls
Input validation (edit) controls
Processing controls
Manual follow up of computer exception reports
User control activities
Disaster Recovery and Business Continuity
Input validation controls
preprinted form check digit control, batch, and proof total hash total record count limit (reasonableness) test menu driven input field check validity check missing data check field size check logic check redundant data check closed loop verification
Field check
limits the types of characters accepted into a specific data field
Validity check
allows only valid transactions or data to be entered into the system
Missing data check
searches for blanks inappropriately existing in input data
Field size check
exact number of characters to be input
Logic check
illogical combinations of input are not accepted
Redundant data check
uses two identifiers in each transaction record
Closed loop verification
allows the data entry personnel to check the accuracy of input data
example
retrieve an account name and system will display it on the operators terminal
Preprinted form
use of input form where information is preassigned a place and a format
Check digit
add an extra digit to the identification number
Control, batch, proof total
total of one numerical field for all the records of a batch
Hash total
total without a meaning
Record count
control total of all records processed
Limit (reasonableness) test
test of the reasonableness of a field of data
given a predetermined upper and lower limit
Menu driven input
input is entered, operator responds to a menu prompting the proper response
