6 major principles of software architecture design
1. "Open-close" principle (OCP)
Software entities should is open for extension, but closed for modification.
Open to expansion, closed for modification.
2. Richter substitution principle (LSP)
Where the base class is applicable, subclasses must apply.
3. Reliance reversal principle (DIP)
To rely on abstraction, do not rely on concrete.
4. Dimitri Law (LoD)
An object should have as little knowledge of other objects as possible.
5. Interface Isolation principle (ISP)
It is better to use multiple specialized interfaces than to apply a single interface.
6. Synthesis/polymerization reuse principle (CARP)
Use compositing/aggregation as much as possible, and try not to use inheritance.
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