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Layer

The concepts of layers in architectural design is described as below:
1. Complex problems can be segmented into smaller and more manageable form.
2. Each layer is specialized for specific functioning.
3. Upper layers can share the services of a lower layer. Thus layering allows us to reuse functionality.
4. Team development is possible because of logical segmentation. A team of programmers will build. The system, and work has to be sub-divided of along clear boundaries.

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