business model.
A model is an abstraction of the real world. A business model is an abstraction of a specific business in reality.
Simplify and summarize complex business and extract core points, so as to better understand the entire system business from a global perspective and avoid getting caught in the details of module functions.
The main focus is on: objects, their properties and behavior, and the connections between other objects.
If you want to abstract a business model of the owner walking the dog.
Set two objects, 1.People, properties (knows): name, gender, etc.; action (does): walking the dog
2.Dog, attributes (knows) include: nickname, dog age, color, etc.; actions (does): run, bark, etc.
relationship between objects. People can control the designated Dog by walking the dog, and the Dog can run or bark by himself.
The details of how to walk the dog, whether to bring the dog ring, where to walk, whether to run or walk, or whether to throw the Frisbee are not implemented yet.
So another example: the remote control can be used to control the TV. There is no need to delve into how the remote control controls the TV, it uses infrared rays, how the circuit board is designed, etc.
Another example: when looking at a house, there is usually a layout model of the entire residential building. With this model, you can better understand the overall situation and how to collaborate with the business model.
20161113 added:
The business model is more like a design. It corresponds to the interface design of the code. It only focuses on the attributes and behaviors of objects and the relationship between objects, and does not discuss the specific implementation.
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Question 1: What is the main business model of the pension benefit subsystem?