Computing

Primary data

Data you have collected

Secondary data

Data collected by someone else

Primary data sources

Surveys, interviews, observations, sensors

Secondary data sources

ABS, Data vic, CSIRO, BOM, NASA

Data types

Integer, Floating point, Date, Boolen, Text

Integer

Whole numbers

Floating

Numbers that can include a decimal

Date

DD/MM/Y

Boolean

Categories

Text

Alphanumerical

Data structures

Spreadsheets or databases

Data integrity

Completeness, Consistency, Clarity

Accuracy

Values stored for a given object must be correct

Reasonableness

Data must fall within expected boundaries

Authenticity

Data comes from a trusted source

Relevance

How close data is to the topic at hand

Timeliness

Age of the data

Data validation

Manual, Electronic, Testing

Manul vaildation

Proofreading

Electronic validation

Type check, Range check, imput masks, Drop down lists

Testing Vaildation

Checks the accuracy of the data

Validation vs Testing

Validation = inpurts Testing = outputs

Referencing sources

Name, Year, Title, Edition, Place of publication, Publisher

Visualisation examples

Charts, Histograms, column graphs, line graphs, stream graphs