Modelling
Modelling is the use of computers to create abstract models of objects, organisms and organizations.It can be done with spreadsheets, mathematical applications, or standard programming languages.









Simulation


Internet games like checkers, hearts, reversi, in which you play against an opponent who is not actually physically there with you, flight simulations.Many military bases with the use of modelling and simulation, are able to practice and predict what will happen in the air.

Examples of Modelling

An example version of something, not the actual product, but what the product will look like, for example, a prototype. to think of modelling as a blueprint that shows the outline of a house.
Advantages of Modelling and Simulation
— Safety-It’s safer to practice the skill you are learning (during the simulation) on a computer than actually doing it.(flight simulation)
— Economy- Less expensive
— Projection- it’s less time consuming
— Visualization- you can see what you will be doing
— Replication- you can do the activity multiple times

Disadvantages of Modelling and Simulation
— It’s not real
— Accuracy as opposed to the real thing (it is hard to predict every possible outcome and often simulations must be revised to include possible obstacles)
— Very complex
— Risks- believing the computer

Social and Ethical Issues of Modelling and Simulation
When dealing with modelling and simulation, you have to consider the risks.

Is it reliable and secure?
Can you trust the integrity of someones work?

You have to think of these things because in today's society the Internet is filled with information both true and false, you must take this fact into account especially with modelling and simulation, because the models and simulations must be precise, when dealing with people and machines, it is not safe to assume anything.