| Thinking in C++ Vol 2 - Practical Programming |
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The point of design patterns, like the point of any
abstraction, is to make your life easier. Usually something in your system is
changing this could be code during the lifetime of the project, or objects
during the lifetime of one program execution. Discover what is changing, and a
design pattern may help you encapsulate that change, and thus bring it under
control.
It s easy to get infatuated with a particular design, and to
create trouble for yourself by applying it just because you know how. What s
hard, ironically, is to follow the XP maxim of do the simplest thing that
could possibly work. But by doing the simplest thing, you not only get a
design that s faster to implement, but also easier to maintain. And if the
simplest thing doesn t do the job, you ll find out a lot sooner than if you
spend the time implementing something complex, and then find out that
doesn t work.
| Thinking in C++ Vol 2 - Practical Programming |
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