Vmodel Help
Model building blocks
Number Describers
Number describers tell something about a basic object that can be measured with a number. For example, someone can have an age, a group of things can have an amount, the air can have a temperature. They all are measurable with numbers.
Amount
An amount is a measurement of how much or how many of something there is. Example: I have an amount of money in the bank and an amount of hair on my head.
Level
A level is something that can go up or down. Examples: Tanya's level of achievement is going up, and her dad's level of anger is going down.
Rate
Rate usually describes a process or an increases or decreases arrow. Rate is how fast or slow the process goes. For example, your heart beats, which is a process. How fast it beats is its rate.
Chance-of-happening
Chance of happening should also describe a process. It is the chance that a process happens. For example, a heart attack's chance of happening depends on a person's overall health and age.
Set-Value
A set value is an number describer that generally stays the same. For example: Freezing point is a set value. Water usually freezes at 32 degrees F.
Number-attribute
Use this when you don't find a specific number describer that works for your model. For example, you might want to measure time elapsed in your model.