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Requires controls over both data input quality and the processing of the data
A ________ system produces information that is accurate, timely, reflects results of only authorized transactions, and includes outcomes of all activites engaged in by the organization during a given period of time
compares the ID code or account number in transaction data with similar data in the master file to verify that the account exists.
Can # exist; true or not
detrmines the correctness of the logical relationship between two data items.
ex: executive makes 15,000 a month can recieve a 1,000 bonus, this a _____. an empolyee making 1,500 receiving a 1,000 bonus is not ______
Authorized ID numbers can contain a ________ that is computed from the other digits.
ex: system can assign two employees 9 digit numbers, but then calculate a tenth digit from the original nine and add it to append a ten digit ID
check digit, check digit verivication
determines if the characters in a field are of the proper type.
detrmines if the data in a field have the appropriate arithmetic sign
tests a numerical amount to ensure that it does not exceed a predetermind value
is similar to a limit check except that it has both upper and lower limits
ensures that input data will fit into the assigned field
each input record determines if all required data items have been entered
ex: sales tranaction record should not be entered if the address is not there.
a ______ tests if a batch of input data is in the proper numerical or alpahbetical sequence.
checks the accuracy of input data by using it to retrieve and display other related information.
controls needed to ensure that data is processed correctly
Encrypting information before sending it over the internet creates what is called a _________
Virtual Private Network