Input Controls

1551 Words4 Pages

Input controls are used to ensure that the data entered into a system is correctly, completely, and is secure. The input controls can help the flow of data in a database to be the same format and easy to understand. There are many times of input controls, however the paper goes into detail about four types of input control which are: input mask, validation rules, source documents, and batch input. Without input controls there can be data integrity errors that could occur and cause information to be incorrect in the database. There are advantages and disadvantages to restricting user interfaces to limit a person ability of typing in too much information or maybe not enough information.

When building a database to house large amounts of data and if many people have access to the database, people may type in information differently than another person. Some people my write the date as 2-09-12 while another may write it as 9 Feb 12. Input controls are used to make sure that people use the same format for all data entered in the database or convert all the dates to the same format such as February 12, 2012. Input controls can also be a preset of information to be entered into a form by a drop-down list or list box. For an example a drop-down list may have a state broken up into 5 regions, north, south, east, west, and central. When data is entered in, the person has to pick the region the information needs to be under to be able to organize the data and complete the input form. “Data can be entered into a computer application from either manual online input or by scheduled automated processing. The input control reviewer should determine the adequacy of both manual and automated controls over data input to ensure that data is input ...

... middle of paper ...

...data. Limiting form formats is also an advantage because the format of the data entry will be the same. The disadvantage would be if a person is used to using a different format, the system would not accept their format and the user would have to re-input that information causing some delay to process the record until the user gets used to the company format.

Works Cited

Amas.syr.edu. 8 Dec 2011. Application Self Evaluation. Retrieved 9 Feb 2012 from

http://amas.syr.edu/AMAS/display.cfm?content_ID=%23%28%28%25!%0A

McFarlane, Steve. 9 Jan 2011. Different types of Source Documents Used in Accounting.

Retrieved 10 February 2012 from http://www.brighthub.com/office/finance/articles/

102265.aspx

Noyes, Brian. 2010 June. Enforcing Complex Business Data Rules with WPF. Retrieved on 9

Feb 2012 from http://msdn.microsoft.com/en-us/magazine/ff714593.aspx

More about Input Controls

Open Document