AIN2601 Assignment 1 Semester 2 2024
When does raw data become valuable? - ANSWER-When processed into
information and used for decision making.
What is the difference between data and information? - ANSWER-Information is
data that have been processed into something meaningful that can be used in
decision making.
What are the steps in the computerised information system process? - ANSWER-
Activities
Data entry
Data processing
Output and storage of data and information
Making decisions
List the characteristics of quality data. - ANSWER-Accurate
Complete
Reliable
Verifiable
Define Source Document - ANSWER-The first documented record of an activity
that took place.
Name two input methods. - ANSWER-batch input
online input
Define batch input. - ANSWER-similar source documents grouped together, and
entered in the CIS periodically (daily / weekly / monthly)
When is batch input suitable? - ANSWER-When a huge number of similar source
documents must be captured;
, When up-to-date data and information are only required on the same frequency as
the frequency of data capturing.
What is the advantage of batch input? - ANSWER-Increased productivity
lower hardware cost
What is the disadvantage of batch input? - ANSWER-The CIS is not up to date
with the latest data and information.
Define online input - ANSWER-data being immediately captured into the CIS at
the point where the activity occurs
What is the advantage of online input? - ANSWER-The data in the CIS is always
up to date.
What is the disadvantage of online input? - ANSWER-More costly than batch as
hardware is required to capture the data at each point where the activity to be
captured takes place.
What methods can be used to process data into information? - ANSWER-
classifying data
performing calculations
sorting data
summarising data
transforming data
Give an example of the processing method 'classifying data'. - ANSWER-Cash
sales vs credit sales
Give an example of the processing method 'performing calculations'. - ANSWER-
Calculating the cost per unit (cost / number of units)
Give an example of the processing method 'sorting data'. - ANSWER-Customer
names in alphabetical order
Give an example of the processing method 'summarising data'. - ANSWER-
Extracting all the transactions for one specific supplier.
When does raw data become valuable? - ANSWER-When processed into
information and used for decision making.
What is the difference between data and information? - ANSWER-Information is
data that have been processed into something meaningful that can be used in
decision making.
What are the steps in the computerised information system process? - ANSWER-
Activities
Data entry
Data processing
Output and storage of data and information
Making decisions
List the characteristics of quality data. - ANSWER-Accurate
Complete
Reliable
Verifiable
Define Source Document - ANSWER-The first documented record of an activity
that took place.
Name two input methods. - ANSWER-batch input
online input
Define batch input. - ANSWER-similar source documents grouped together, and
entered in the CIS periodically (daily / weekly / monthly)
When is batch input suitable? - ANSWER-When a huge number of similar source
documents must be captured;
, When up-to-date data and information are only required on the same frequency as
the frequency of data capturing.
What is the advantage of batch input? - ANSWER-Increased productivity
lower hardware cost
What is the disadvantage of batch input? - ANSWER-The CIS is not up to date
with the latest data and information.
Define online input - ANSWER-data being immediately captured into the CIS at
the point where the activity occurs
What is the advantage of online input? - ANSWER-The data in the CIS is always
up to date.
What is the disadvantage of online input? - ANSWER-More costly than batch as
hardware is required to capture the data at each point where the activity to be
captured takes place.
What methods can be used to process data into information? - ANSWER-
classifying data
performing calculations
sorting data
summarising data
transforming data
Give an example of the processing method 'classifying data'. - ANSWER-Cash
sales vs credit sales
Give an example of the processing method 'performing calculations'. - ANSWER-
Calculating the cost per unit (cost / number of units)
Give an example of the processing method 'sorting data'. - ANSWER-Customer
names in alphabetical order
Give an example of the processing method 'summarising data'. - ANSWER-
Extracting all the transactions for one specific supplier.
