all index.md files renamed to README.md for more compatibility with github

2016-03-20 11:50:21 +03:00
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+---
+layout: pattern
+title: Layers
+folder: layers
+permalink: /patterns/layers/
+categories: Architectural
+tags:
+ - Java
+ - Difficulty-Intermediate
+ - Spring
+---
+
+## Intent
+Layers is an architectural style where software responsibilities are
+ divided among the different layers of the application.
+
+![alt text](./etc/layers.png "Layers")
+
+## Applicability
+Use the Layers architecture when
+
+* you want clearly divide software responsibilities into differents parts of the program
+* you want to prevent a change from propagating throughout the application
+* you want to make your application more maintainable and testable
+
+## Credits
+
+* [Pattern Oriented Software Architecture Vol I-V](http://www.amazon.com/Pattern-Oriented-Software-Architecture-Volume-Patterns/dp/0471958697)