Thursday, 22 November 2007

Transactional Websites

Transactional Websites

A transactional website, allows the user to make a purchase over the internet between the customer and company providing the goods and services. They have to collect the details off the customer and collect payment.

Databases will be used in these websites for purchase history, stock, details address name, payment details,

Organizations need information to function details,
Details like username, email addresses, password, stock levels,
Amazon, police investigate things databases, paypal need card details and passwords
Hospital need databases information, as their patients need precise medicines etc.

Data- is a collection of facts, store data, data is processed in the computer and output in the form of information, data is typed into the computer, or clicked. Computers need data,

Information- is what the humans want; it is generally the output from a computer system. It is data in context; it has a meaning to us. The real world is made out of information. Information follows data,

Knowledge- goes even further, it is coherent understanding based on information. It includes understanding links between different items of information and how actions can be decided on because of the information

We need to do data capture is a process of getting information from the outside world and putting it on the computer, collecting the data, voting on a reality TV program,
Mistakes can be important as can get mislead for someone else or something like grades,
or prisoners.

Paper Forms
They collect the same fields of data from each person,
The data is easy to process as there are exact fields
They have structure there are sections
Tick boxes this restricts what people write back

Screen Forms
Can delete mistakes
Can be validated, can check your mistakes, it works in software, spreadsheets
No surname is longer than 15 letters
No name has numbers in it
Company need validation to Reduce mistakes, reduces time, increase money,
Validation cant stop all mistakes, can be the wrong information put in but the right format,

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