week 8

3.8 Data systems

3.8.1 Know the definition of data wrangling and understand its purpose and

when it is used.

 

3.8.2 Know and understand the purpose of each step of data wrangling:

• structure

• clean

• validate

• enrich

• output.

 

3.8.3 Know and understand the purpose of each core function of a data system:

• input

• search

• save

• integrate

• organise (index)

• output

• feedback loop.

 

3.8.4 Know the types of data entry errors and understand how and why

they occur:

• transcription errors

• transposition errors.

 

3.8.5 Know and understand methods to reduce data entry errors:

• validation of user input

• verification of user input by double entry

• drop-down menus

• pre-filled data entry boxes.

 

3.8.6 Know and understand the factors that impact implementation of

data entry:

• time needed to create the screens

• expertise needed to create screens

• time needed to enter the data.

 

3.8.7 Understand the relationship between factors that impact data entry and

data quality and make judgements about the suitability of methods to

reduce data entry errors in digital support and security.

 

3.8.8 Understand the relationship between factors that impact implementation

of data entry and make judgements about the suitability of implementing

data entry in digital support and security.

Last Updated
2025-07-07 15:35:09