Week 1 and 2 of Information Systems

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  • Created by: EvemChas
  • Created on: 24-01-23 13:04
The removing of intermediaries
Disintermediation
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Streams of unorganised raw facts
Data
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Data that has been structured to give meaning
Information
3 of 13
Data and information that have been organised for understanding, experience and application.
Knowledge
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A example of an internal transactional processing system input
Orders shipped
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An example of an external transactional processing system input
Orders
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An example of an internal transactional processing system output
Packing notes
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An example of an external transactional processing system output
Dispatch email
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What does data analysis do?
Discovers and presents data arising from Requirements.
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What is a update anomaly?
Exists when 1 or more instances of duplicated data is updated.
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What is a delete anomaly?
Exists when certain attributes are lost because of the deletion of other attributes
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What is a insert anomaly?
Occurs when certain attributes cannot be inserted into the database without the presence of other attributes.
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What are entities?
Any object for which information needs to be held on the system.
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Other cards in this set

Card 2

Front

Streams of unorganised raw facts

Back

Data

Card 3

Front

Data that has been structured to give meaning

Back

Preview of the front of card 3

Card 4

Front

Data and information that have been organised for understanding, experience and application.

Back

Preview of the front of card 4

Card 5

Front

A example of an internal transactional processing system input

Back

Preview of the front of card 5
View more cards

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