[clug] July Programming SIG: the fourteen principles for new
grail at goldweb.com.au
Wed Jul 16 02:26:08 GMT 2008
Remember one of the core principles of "The Unix Way":
1) Make it work.
2) Make it work right.
3) Make it work fast.
*all in the specified order, no short cuts.
For object-oriented design, there's also the Law of Demeter (or
principle of least knowledge). If you find yourself doing something
like car.engine.starter_motor.activate, you're violating the law of
demeter. You should use car.start_engine (that's the least thing that
can possibly work, and it documents the intention right there in the
program), then when the underlying model changes you don't have to go
finding all invocations of car.engine.starter_motor.activate and
change them to car.engine.fuel_cell.valve.open.
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