Understanding Modelling in IT

What is modelling in Information Technology?

• Creating a physical object

• Creating a computer-based representation of a real-world system

• Watching videos online

Which of the following best describes a model?

• A real object

• A full-size machine

• A simplified version of a real-world process or system

• A written report

Which of these is an example of a model?

• A real car

• A computer simulation of traffic flow

• A pencil

• A calendar

Why is modelling used in computing?

• To make things more complicated

• To avoid using computers

• To understand, test or predict how systems work

• To replace real experiments completely

Which of the following is NOT a type of model?

• Simulation

• Spreadsheet

• Animation

• Song

One benefit of using a model is that it is:

• Always real and exact

• Cheaper and safer than real-life testing

• Only for scientists

• Hard to understand

Modelling can help save money because:

• You can test things without buying expensive materials

• Models are sold in stores

• You can sell models online

• Models don't need power

A weather forecast is an example of:

• A real-world event

• A guess

• A scientific model predicting future weather

• A satellite signal

Scientists use models to:

• Avoid using data

• Only explain things to children

• Predict what might happen in the future

• Replace teachers

Which is a reason scientists prefer using models instead of real systems?

• Real systems are boring

• Models are easier to break

• Models allow faster and safer testing

• Real systems are fake