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: | ||
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<ol>High-level modules should not depend on low-level modules. Both should depend on [http://en.wikipedia.org/wiki/Abstraction_(computer_science) abstractions].</ol> | |||
<ol>Abstractions should not depend upon details. Details should depend upon abstractions.</ol> | |||
</ | </li> | ||
Revision as of 21:55, 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.