CSC/ECE 517 Fall 2009/wiki3 5 SD: Difference between revisions
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The Dependency Inversion Principle(DIP) states that: | The Dependency Inversion Principle(DIP) states that: | ||
< | <ol> | ||
< | <li>High-level modules should not depend on low-level modules. Both should depend on [http://en.wikipedia.org/wiki/Abstraction_(computer_science) abstractions].</li> | ||
< | <li>Abstractions should not depend upon details. Details should depend upon abstractions.</li> | ||
</ | </ol> | ||
Revision as of 21:56, 11 November 2009
Dependency inversion principle
The Dependency Inversion Principle(DIP) states that:
- High-level modules should not depend on low-level modules. Both should depend on abstractions.
- Abstractions should not depend upon details. Details should depend upon abstractions.