Home Student Login Teacher This lets the computer check if you have typed it exactly the same both times and not made a mistake. The system returned: (22) Invalid argument The remote host or network may be down. Also, if you are tired or your eyes feel 'blurry' then you might miss errors.

Verification Ict

Introduction 2. Think about when you choose a new password, you often have to type it in twice. Printing out a copy of the data and comparing the printout to the original paper document. This might be because the person misreads what is written on the source document or perhaps mis-hears what the customer tells them over the telephone.

Verification can be used to help make sure that the data in your database contains as few mistakes as possible. It might simply be down to the person rushing and not being careful over which keys they press. For example, entering 68 instead of 86 or 1243 instead of 1234. Presence Check 10.

Hamming Code is one of the mathematical methods used to detect and fix errors in data. It verifies that the first version is correct by matching it against the second version. However, it is important that the data in your database is as accurate as possible. http://www.teach-ict.com/as_a2_ict_new/ocr/AS_G061/311_data_info_knowledge/validation_verification/miniweb/pg11.htm About Us Privacy Policy Terms of Use FAQ Copyright © www.teach-ict.com ERROR The requested URL could not be retrieved The following error was encountered while trying to retrieve the URL: http://0.0.0.8/

Picture/Format Check 9. Your cache administrator is webmaster. Note that it is better for the second person to read the data entries rather than yourself, because often you can make the same mistake twice such as transposing a number. However, it isn’t always that easy to keep moving your eyes back and forth between a monitor and a paper copy.

Transcription Error

You would end up with two copies of the data. http://www.teach-ict.com/glossary/T/T.htm Verification It was mentioned earlier that validation cannot make sure data that you enter is correct, it can only check that it is sensible, reasonable and allowable. Verification Ict Type Check 5. Presence Check Length Check 7.

Your cache administrator is webmaster. have a peek at these guys Common Errors 11.Verification 11. It can help pick up errors where data has been entered incorrectly or transposed. The system returned: (22) Invalid argument The remote host or network may be down. Check Digit

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THE education site for computer science and ICT Teacher Login Student Login Home Subscribe GLOSSARY LEGACY SITE CONTACT US A However, it can be time consuming if there is a large amount of data to check and if you do it too quickly, mistakes could be overlooked. check over here Whilst this can help to identify many mistakes, it is not ideal for large amounts of data.

Picture/Format Check 9. This is probably the easiest of the verification methods because you can have both copies side by side and scan both for mistakes. Verification can be performed in a few ways: Entering the data twice.

Subjects can cover modern computer technology such as the PC, Xbox, iPod, PSP console, or software subjects such as mp3, online and internet services or theory such as the data protection

Validation 3. Check Digit 6. Challenge see if you can find out one extra fact on this topic that we haven't already told you Click on this link: Hamming Code © www.teach-ict.com About Us Generated Thu, 08 Dec 2016 04:03:19 GMT by s_hp84 (squid/3.5.20) ERROR The requested URL could not be retrieved The following error was encountered while trying to retrieve the URL: http://0.0.0.9/ Connection

Type Check 5. Length Check 7. DEFINITION: Verification means to check that the data on the original source document is identical to the data that you have entered into the system or object document. this content Range Check 4.

Common Errors 11.Verification 10. Introduction 2. Common Errors Transcription Errors Whenever data is manually entered into the system there is a chance that an error will be made. Range Check 4.

Checking the data on the screen against the original paper document This saves having to enter the data twice. Lookup 8. Please try the request again. Getting a helping hand If you work with colleagues, than a good way of reducing errors is for another person to read your data entries whilst you call out from the

THE education site for computer science and ICT Teacher Login Student Login Home Subscribe GLOSSARY LEGACY SITE CONTACT US A B C D E F G H I J K Long codes made up of numbers or letters that have no particular meaning to the person keying in the data are particularly vulnerable to error.

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