AIS Chap 8

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.

Logical Relationship

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

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 _________