4.1.1- 4.1.3

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Define and give examples for: Data, information and knownledge.
Raw facts and figures 60, 70, 80,data given meaning and context-seconds the runners took in a 100km race,derived from information by applying rules to it (quickest 60sec runner and slowest 80sec runner )
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Give 3 advantages and Disadvantages of encoding and 1 example of how it's done.
Saves storage space, Faster to type in, Less likely to have transcription errors/Coarse data,Value judgements leading to inconsistencies,Limited choice less accurate data, Reduces information Male to M
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Define transcription errors, coarse data and value judgements.
data entry error made by humans,data with lose of precision and based on someone’s opinion
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Give an example of transcription errors.
12/05/90 or S. Johnson this can cause mistakes because it’s not individual enough not to get mixed up with people’s details; this important information needs to be complete 12/05/1990 or Samuel Johnson.
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Give an example of coarse data.
If you were checking people’s eye colours in a maths class and just gave the options blue or green or brown this would lead to coarse data because one person’s blue is another person's green these value judgements lead to inaccuracies (hazel :))
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Define Valid and accurate and give an example.
correct, accepted by the system for example , the date can fit into 06/05/1998 however, the date might be wrong through clerical errors it might by 1989
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Give an example to illustrate the importance of up to date data.
For example, should have to adhere to the data protection act 1998, medical information needs to be up-to-date so that a pupil can be treated in medical emergancies, thye need up-to-date contact details to send letters home
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Give the 3 processes of retaining information.
Data collection, Data Entry and Data Processing
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Give examples to illustrate the cost of getting information.
money- cash prizes to encourage people to do surveys, time- it takes alot time for staff to enter data, human resources- you have to train staff in how to use the software
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How does good quality information add value to a company?
aids decision making,monitor progress, spots trends, targetted reasoning
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Give examples for some of the values of good quality information.
aids decision-making- if you see somethings not selling don't buy anymore, monitoring progess- if a footballers fitness needs improving give him more training, if the supermarket can see with your loyalty card your tastes they will give you discounts
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Give the 5 characteristics of good quality information.
correctly targetted, understandable,complete, relevant, up-to date
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Give some examples for good quality information.
correctly targetted- no use asking students, who took french if they will take a-level german, understandable a manager needs to understand a table depicting his sales, up-to-date- no use sending a mail-out if you that customer a has bought a house
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How can you find information?
internet, emails,chat,post questions on bulletin board, teletext/interactive tv
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Give benefits of ICT over manual.
quick key word searches, free, in real time, reachers wider audience, up-to-date
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How can you use ICT to research?
internet-up-to-date- news issues,email your teacher, chat to fellow students
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Other cards in this set

Card 2

Front

Give 3 advantages and Disadvantages of encoding and 1 example of how it's done.

Back

Saves storage space, Faster to type in, Less likely to have transcription errors/Coarse data,Value judgements leading to inconsistencies,Limited choice less accurate data, Reduces information Male to M

Card 3

Front

Define transcription errors, coarse data and value judgements.

Back

Preview of the front of card 3

Card 4

Front

Give an example of transcription errors.

Back

Preview of the front of card 4

Card 5

Front

Give an example of coarse data.

Back

Preview of the front of card 5
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