Your SlideShare is downloading. ×
  • Like
Upcoming SlideShare
Loading in...5

Thanks for flagging this SlideShare!

Oops! An error has occurred.


Now you can save presentations on your phone or tablet

Available for both IPhone and Android

Text the download link to your phone

Standard text messaging rates apply



A simple presentation on data, data collection, data input, verification and validation.

A simple presentation on data, data collection, data input, verification and validation.

Published in Technology , Business
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
    Be the first to like this
No Downloads


Total Views
On SlideShare
From Embeds
Number of Embeds



Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

    No notes for slide


  • 1. DataData
  • 2. Information and dataInformation and data • Data  consist of values stored inside the computer It does not mean muchmost of the time it is stored as coded data Information  added valueis meaningful to us Something that can make us do certain action.
  • 3. Data collection and preparationData collection and preparation • Data is the main component when speaking about processing • Without data no output!!!!!!!!! • Data that we input has to be collected • Not always that data is also in a form that we can use! • Data has to be prepared!
  • 4. • Analogue data data that can take any value such as temperature, lenght, weight. • Digital data  computers like digital data  it is data that cabe accepted by computer compouter might only accept values up to two decimals and similar. • Analogue data has to be converted into digital data prior using it at the computer.
  • 5. Data input and checkingData input and checking • When we input data we have to make sure that no errors have been made. • For that purposes we have two types of checking that should be done on data input to a system: • Data verification • Data validation
  • 6. • Data verificationchecking to make sure that taht what was input to the system was meant to be inputed. • i.e. Typing errors and similar. you should always double check or have two people check what has been it is checked depends on the importance of data
  • 7. • Data validation  making sure that the right sort of data has been input. • Computer does this by following set of rules. • It depends from your needs and software used
  • 8. File organisation andFile organisation and techniquestechniques • File full set of data • File is to large and sometimes to comlex to find certain data • So it is split into smaller portions calledrecords • Record consist out of few smaller parts stored in a space and is called field • Each record is uniqely identified  key field