Configuration - Input/Output Controls

What are the input controls?

Input control procedures must ensure that every transaction to be processed is received, processed and recorded accurately and completely. These controls should ensure that only valid and authorized information is input and that these transactions are only processed once.

What are the purposes of data validation and editing procedures?

Preprogrammed input formats ensure that data are input to the correct field in the correct format.

Preprogrammed input procedures allow supervisor overrides of data validation and editing, automatic logging should occur.

What are the data validation?

Data validation is a process of checking data for accuracy and reliability before it is processed or stored in a system.

It helps to prevent errors, inconsistencies, and fraud in data.

There are various types of data validation checks, including sequence check, limit check, range check, validity check, completeness check, and duplicate check.

Sequence check

Sequence check ensures that data is entered in a specific order or sequence, such as invoice numbers or transaction IDs.

The control number follows sequentially, and any out-of-sequence or duplicated control numbers are rejected or noted on an exception report for follow-up purposes.

Limit check

Limit check ensures that data does not exceed predetermined limits, such as maximum salary amounts or quantity limits.

Range check

Range check ensures that data falls within a specific range, such as valid course levels for registration.

Validity check

Validity check ensures that data matches predetermined values or codes, such as gender or employment status.

Completeness check

Completeness check ensures that all required fields or data elements are filled in, preventing incomplete or missing data.

Duplicate check

Duplicate check ensures that data is not entered more than once, preventing duplicate records or transactions.

What are output controls?

Output controls provide assurance that the data delivered to users will be presented, formatted and delivered in a consistent and secure manner.