VModel
MODEL BUILDING BLOCKS


 Measurables
Measurables are very important to any Vmodel model. They represent describers of basic objects that can be measured. 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 in some way.

Processes only affect measurables.

Measurable boxes are not for numbers. Even if you know the exact number value of something, you shouldn't put it in the box. For example, if your model is about why the height of plants is increasing, you should put "height" in a measurable box, and not the exact value (in other words, not two feet high.) This way when you use the increases and decreases links, it will make sense. The process growing can increase "height," but it can't increase "two feet high."

These things are called measurables to show that they could be measured. You don't need to know how to measure them or know the value of them. (For example, I don't know what the temperature of the sun is or how to measure it, but someone probably could.) Even if you cannot think of how to measure something, if it describes something and can go up and down, it is probably a measurable. There are different kinds.

 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 describes a process. 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.

Measurable
Use this when you don't find a specific measurable from the list above that works for your model. Example.

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