What is Solid: Definition and 1000 Discussions

In object-oriented computer programming, SOLID is a mnemonic acronym for five design principles intended to make software designs more understandable, flexible, and maintainable. The principles are a subset of many principles promoted by American software engineer and instructor Robert C. Martin, first introduced in his 2000 paper Design Principles and Design Patterns.The SOLID concepts are

The Single-responsibility principle: "There should never be more than one reason for a class to change." In other words, every class should have only one responsibility.
The Open–closed principle: "Software entities ... should be open for extension, but closed for modification."
The Liskov substitution principle: "Functions that use pointers or references to base classes must be able to use objects of derived classes without knowing it". See also design by contract.
The Interface segregation principle: "Many client-specific interfaces are better than one general-purpose interface."
The Dependency inversion principle: "Depend upon abstractions, [not] concretions."The SOLID acronym was introduced later, around 2004, by Michael Feathers.Although the SOLID principles apply to any object-oriented design, they can also form a core philosophy for methodologies such as agile development or adaptive software development.

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  1. T

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  2. T

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  3. D

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  4. B

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  5. E

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  6. P

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  7. O

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  8. O

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  9. M

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  10. H

    A question For experts in Solid State Physics

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  11. E

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  12. M

    Can Hydrogen Be Efficiently Stored as a Solid for Vehicle Use?

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  13. V

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  14. P

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  15. M

    Reactions in Solution, But Not In Solid Form?

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  16. P

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  17. 1

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  18. A

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  19. G

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  20. 1

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  21. P

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  22. E

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  23. pairofstrings

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  24. U

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  25. S

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  26. B

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  27. M

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  29. H

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  30. R

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  31. T

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  32. P

    How to dehydrate a solid crystal?

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  33. B

    The moment of inertia of a solid sphere

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  34. C

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  35. Y

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  36. P

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  37. B

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  38. A

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  39. V

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  40. R

    Volume of Revolution for Polynomial Bowl

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  41. Y

    Question on solid angle of sphere.

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  42. R

    Volume of Solid of Revolution Question

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  43. S

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  44. A

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  45. A

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  46. I

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  47. N

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  48. I

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  49. G

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  50. B

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