SU 1 Data and the Computerized information system process

Question 1

Computerised Information system (CIS) Process

Answer 1

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

Question 2

Raw data

Answer 2

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

Question 3

Information

Answer 3

Obtained by processing raw data = Processed data

Question 4

Source document

Answer 4

First documented record of an activity that took place

Question 5

Input types

Answer 5

• Batch input

* Online input

Question 6

Batch Input

Answer 6

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

Question 7

Online input

Answer 7

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

Question 8

Processing methods

Answer 8

• Classifying data
• Performing calculations
• Sorting data
• Summarizing data
• Transforming data

Question 9

Classifying data

Answer 9

Data is arranged into different groups (catagories)

Question 10

Performing calculations

Answer 10

Arithmetical or logical calculations can be performed on data.

Question 11

Sorting data

Answer 11

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

Question 12

Summarising data

Answer 12

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

Question 13

Transforming data

Answer 13

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

Question 14

Processing types

Answer 14

• Batch processing

* Real- time processing

Question 15

Batch processing

Answer 15

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

Question 16

Real-time processing

Answer 16

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

Question 17

Output types

Answer 17

• Batch output

* Interactive output

Question 18

Batch output

Answer 18

All requests for information are batched together and periodically extracted

Question 19

Interactive output

Answer 19

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

Question 20

Typical processing systems

Answer 20

• 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

Question 21

Batch processing

Answer 21

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

Question 22

Real-time processing

Answer 22

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

Question 23

Output types

Answer 23

• Batch output

* Interactive output

Question 24

Batch output

Answer 24

All requests for information are batched together and periodically extracted

Question 25

Interactive output

Answer 25

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

Question 26

Typical processing systems

Answer 26

* 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