Published Jan 14, 2021
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In object-oriented computer programming, SOLID is a mnemonic acronym for five design principles intended to make software design more understandable, flexible, and maintainable.
A class should only have a single responsibility, that is, only changes to one part of the software’s specification should be able to affect the specification of the class.
Software entities should be open for extension, but closed for modification.
Objects in a program should be replacable with instances of their subtypes without altering the correctness of that program
Many client-specific interfaces are better than one general-purpose interface
One should “depend upon abstractions, [not] concretions”