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 | Abstraction is about looking only at the information that is relevant at the time. |
| When modelling, 2 or 3 orthogonal views of the system are created. |
| Diagrams are independent views of the model and may be of different types. |
| In structured analysis, the functional view is the primary view of the system. |
| In object oriented analysis, the object model, or data view, is the primary and most stable view of the system. |
| Hardware engineering produces well encapsulated hardware designs. |
| Applying encapsulation techniques to software encourages maintainable, re-useable and extensible code. |
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