| S |
- Single responsibility principle[4]
- a class
should have only a single responsibility (i.e. changes to only one part
of the software's specification should be able to affect the
specification of the class)
|
|---|
| O |
- Open/closed principle[5]
- “software entities … should be open for extension, but closed for modification.”
|
| L |
- Liskov substitution principle[6]
- “objects in a program should be replaceable with instances of their
subtypes without altering the correctness of that program.” See also design by contract.
|
| I |
- Interface segregation principle[7]
- “many client-specific interfaces are better than one general-purpose interface.”[8]
|
| D |
- Dependency inversion principle[9]
- one should “depend upon abstractions, [not] concretions.”[8]
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