G061- CHAPTER 4
- Created by: Nadia162N
- Created on: 20-04-17 11:27
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- CHAPTER 4
- Modelling
Software
- Object
modelling
- buildings, cars, aircraft, computer games
- Use of layers
- Virtual representation
- +Expensive prototypes don’t need to be built
- +No equipment is damaged
- +People are not put in any danger
- +Modifications can be made easily and re-tested quickly
- +Time can be sped up/slowed down
- -Results depend entirely on how good the model is
- -Simulations can’t completely re-create real-life situations
- -equipment and software are expensive
- -training required
- Financial
modelling
- test results, business income
- Use spreadsheets
- +“What if...?” statements can be asked without rebuilding a model from scratch
- +minimise financial risk
- +provide quick answers
- +Graphs can be produced
- -Some might be too simple to be of any use
- -time consuming
- -expensive, bespoke software required
- Mathematical
modelling
- Use spreadsheets
- +“What if...?” statements can be asked without rebuilding a model from scratch
- +minimise financial risk
- +provide quick answers
- +Graphs can be produced
- -Some might be too simple to be of any use
- -time consuming
- -expensive, bespoke software required
- Use spreadsheets
- Object
modelling
- Worksheet
- Consists of all the cells on a sheet
- Workbook
- A collection of worksheets
- Row
- A range of cells across the sheet
- Column
- A range of cells down the sheet
- Range
- A group of cells
- Absolute cell referencing
- Always refers to the same cell
- Relative cell referencing
- Changes the cell it references according to the movement of the target cell
- Modelling
Software
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