SU 1 Data and the Computerized information system process Flashcards

1
Q

Computerised Information system (CIS) Process

A

Activities - Input of data - (Store raw data and information) - Processing - Output/Information - (Store raw data and information) - Making decisions

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2
Q

Raw data

A

Data captured on manual documents or data entered in the CIS and not yet processed.

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3
Q

Information

A

Obtained by processing raw data = Processed data

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4
Q

Source document

A

First documented record of an activity that took place

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5
Q

Input types

A
  • Batch input

* Online input

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6
Q

Batch Input

A

Similar source documents being grouped together (batch) and entered in the CIS periodically (daily, weekly, monthly)

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7
Q

Online input

A

Data being captured immediately into the CIS at the point where the activity occurs

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8
Q

Processing methods

A
  • Classifying data
  • Performing calculations
  • Sorting data
  • Summarizing data
  • Transforming data
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9
Q

Classifying data

A

Data is arranged into different groups (catagories)

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10
Q

Performing calculations

A

Arithmetical or logical calculations can be performed on data.

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11
Q

Sorting data

A

Data is organised (sorted) in an orderly sequence based on specific criteria.

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12
Q

Summarising data

A

condenses the data by extracting only specific data based on criteria provided

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13
Q

Transforming data

A

Transforming the format or medium of the original data into another format or medium.

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14
Q

Processing types

A
  • Batch processing

* Real- time processing

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15
Q

Batch processing

A

When transaction files are updated to the master files periodically (daily, weekly or monthly)

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16
Q

Real-time processing

A

Immediate update of the transaction files to the master files as the transaction occurs.

17
Q

Output types

A
  • Batch output

* Interactive output

18
Q

Batch output

A

All requests for information are batched together and periodically extracted

19
Q

Interactive output

A

Users are directly connected to the CIS and can request certain information and receive it immediately

20
Q

Typical processing systems

A
  • Batch input, batch processing and batch output
  • Batch input, batch processing and interactive output
  • Online input, batch processing and interactive output
  • Online input, real-time processing and interactive input
21
Q

Batch processing

A

When transaction files are updated to the master files periodically (daily, weekly or monthly)

22
Q

Real-time processing

A

Immediate update of the transaction files to the master files as the transaction occurs.

23
Q

Output types

A
  • Batch output

* Interactive output

24
Q

Batch output

A

All requests for information are batched together and periodically extracted

25
Q

Interactive output

A

Users are directly connected to the CIS and can request certain information and receive it immediately

26
Q

Typical processing systems

A
  • Batch input, batch processing and batch output
  • Batch input, batch processing and interactive output
  • Online input, batch processing and interactive output
  • Online input, real-time processing and interactive input